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October 16, 2014 05:19
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BZOJ 3648. 寝室管理。。【树分治】【平衡树】。。。
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/** Micro Mezz Macro Flation -- Overheated Economy ., Last Update: Oct. 12th 2014 **/ //{ | |
/** Header .. **/ //{ | |
#pragma comment(linker, "/STACK:36777216") | |
//#pragma GCC optimize ("O2") | |
#define LOCAL | |
//#include "testlib.h" | |
#include <functional> | |
#include <algorithm> | |
#include <iostream> | |
#include <fstream> | |
#include <sstream> | |
#include <iomanip> | |
#include <numeric> | |
#include <cstring> | |
#include <climits> | |
#include <cassert> | |
#include <complex> | |
#include <cstdio> | |
#include <string> | |
#include <vector> | |
#include <bitset> | |
#include <queue> | |
#include <stack> | |
#include <cmath> | |
#include <ctime> | |
#include <list> | |
#include <set> | |
#include <map> | |
//#include <tr1/unordered_set> | |
//#include <tr1/unordered_map> | |
//#include <array> | |
using namespace std; | |
#define REP(i, n) for (int i=0;i<n;++i) | |
#define FOR(i, a, b) for (int i=a;i<b;++i) | |
#define DWN(i, b, a) for (int i=b-1;i>=a;--i) | |
#define REP_1(i, n) for (int i=1;i<=n;++i) | |
#define FOR_1(i, a, b) for (int i=a;i<=b;++i) | |
#define DWN_1(i, b, a) for (int i=b;i>=a;--i) | |
#define REP_C(i, n) for (int n____=n,i=0;i<n____;++i) | |
#define FOR_C(i, a, b) for (int b____=b,i=a;i<b____;++i) | |
#define DWN_C(i, b, a) for (int a____=a,i=b-1;i>=a____;--i) | |
#define REP_N(i, n) for (i=0;i<n;++i) | |
#define FOR_N(i, a, b) for (i=a;i<b;++i) | |
#define DWN_N(i, b, a) for (i=b-1;i>=a;--i) | |
#define REP_1_C(i, n) for (int n____=n,i=1;i<=n____;++i) | |
#define FOR_1_C(i, a, b) for (int b____=b,i=a;i<=b____;++i) | |
#define DWN_1_C(i, b, a) for (int a____=a,i=b;i>=a____;--i) | |
#define REP_1_N(i, n) for (i=1;i<=n;++i) | |
#define FOR_1_N(i, a, b) for (i=a;i<=b;++i) | |
#define DWN_1_N(i, b, a) for (i=b;i>=a;--i) | |
#define REP_C_N(i, n) for (int n____=(i=0,n);i<n____;++i) | |
#define FOR_C_N(i, a, b) for (int b____=(i=0,b);i<b____;++i) | |
#define DWN_C_N(i, b, a) for (int a____=(i=b-1,a);i>=a____;--i) | |
#define REP_1_C_N(i, n) for (int n____=(i=1,n);i<=n____;++i) | |
#define FOR_1_C_N(i, a, b) for (int b____=(i=a,b);i<=b____;++i) | |
#define DWN_1_C_N(i, b, a) for (int a____=(i=b,a);i>=a____;--i) | |
#define ECH(it, A) for (__typeof(A.begin()) it=A.begin(); it != A.end(); ++it) | |
#define rECH(it, A) for (__typeof(A.rbegin()) it=A.rbegin(); it != A.rend(); ++it) | |
#define REP_S(i, str) for (char*i=str;*i;++i) | |
#define REP_L(i, hd, suc) for (int i=hd;i;i=suc[i]) | |
#define REP_G(i, u) REP_L(i,hd[u],suc) | |
#define REP_SS(x, s) for (int x=s;x;x=(x-1)&s) | |
#define DO(n) for ( int ____n = n; ____n-->0; ) | |
#define REP_2(i, j, n, m) REP(i, n) REP(j, m) | |
#define REP_2_1(i, j, n, m) REP_1(i, n) REP_1(j, m) | |
#define REP_3(i, j, k, n, m, l) REP(i, n) REP(j, m) REP(k, l) | |
#define REP_3_1(i, j, k, n, m, l) REP_1(i, n) REP_1(j, m) REP_1(k, l) | |
#define REP_4(i, j, k, ii, n, m, l, nn) REP(i, n) REP(j, m) REP(k, l) REP(ii, nn) | |
#define REP_4_1(i, j, k, ii, n, m, l, nn) REP_1(i, n) REP_1(j, m) REP_1(k, l) REP_1(ii, nn) | |
#define ALL(A) A.begin(), A.end() | |
#define LLA(A) A.rbegin(), A.rend() | |
#define CPY(A, B) memcpy(A, B, sizeof(A)) | |
#define INS(A, P, B) A.insert(A.begin() + P, B) | |
#define ERS(A, P) A.erase(A.begin() + P) | |
#define LBD(A, x) (lower_bound(ALL(A), x) - A.begin()) | |
#define UBD(A, x) (upper_bound(ALL(A), x) - A.begin()) | |
#define CTN(T, x) (T.find(x) != T.end()) | |
#define SZ(A) int((A).size()) | |
#define PB push_back | |
#define MP(A, B) make_pair(A, B) | |
#define PTT pair<T, T> | |
#define Ts *this | |
#define rTs return Ts | |
#define fi first | |
#define se second | |
#define re real() | |
#define im imag() | |
#define Rush for(int ____T=RD(); ____T--;) | |
#define Display(A, n, m) { \ | |
REP(i, n){ \ | |
REP(j, m-1) cout << A[i][j] << " "; \ | |
cout << A[i][m-1] << endl; \ | |
} \ | |
} | |
#define Display_1(A, n, m) { \ | |
REP_1(i, n){ \ | |
REP_1(j, m-1) cout << A[i][j] << " "; \ | |
cout << A[i][m] << endl; \ | |
} \ | |
} | |
typedef long long LL; | |
//typedef long double DB; | |
typedef double DB; | |
typedef unsigned uint; | |
typedef unsigned long long uLL; | |
typedef vector<int> VI; | |
typedef vector<char> VC; | |
typedef vector<string> VS; | |
typedef vector<LL> VL; | |
typedef vector<DB> VF; | |
typedef set<int> SI; | |
typedef set<string> SS; | |
typedef map<int, int> MII; | |
typedef map<string, int> MSI; | |
typedef pair<int, int> PII; | |
typedef pair<LL, LL> PLL; | |
typedef vector<PII> VII; | |
typedef vector<VI> VVI; | |
typedef vector<VII> VVII; | |
template<class T> inline T& RD(T &); | |
template<class T> inline void OT(const T &); | |
//inline int RD(){int x; return RD(x);} | |
inline LL RD(){LL x; return RD(x);} | |
inline DB& RF(DB &); | |
inline DB RF(){DB x; return RF(x);} | |
inline char* RS(char *s); | |
inline char& RC(char &c); | |
inline char RC(); | |
inline char& RC(char &c){scanf(" %c", &c); return c;} | |
inline char RC(){char c; return RC(c);} | |
//inline char& RC(char &c){c = getchar(); return c;} | |
//inline char RC(){return getchar();} | |
template<class T> inline T& RDD(T &); | |
inline LL RDD(){LL x; return RDD(x);} | |
template<class T0, class T1> inline T0& RD(T0 &x0, T1 &x1){RD(x0), RD(x1); return x0;} | |
template<class T0, class T1, class T2> inline T0& RD(T0 &x0, T1 &x1, T2 &x2){RD(x0), RD(x1), RD(x2); return x0;} | |
template<class T0, class T1, class T2, class T3> inline T0& RD(T0 &x0, T1 &x1, T2 &x2, T3 &x3){RD(x0), RD(x1), RD(x2), RD(x3); return x0;} | |
template<class T0, class T1, class T2, class T3, class T4> inline T0& RD(T0 &x0, T1 &x1, T2 &x2, T3 &x3, T4 &x4){RD(x0), RD(x1), RD(x2), RD(x3), RD(x4); return x0;} | |
template<class T0, class T1, class T2, class T3, class T4, class T5> inline T0& RD(T0 &x0, T1 &x1, T2 &x2, T3 &x3, T4 &x4, T5 &x5){RD(x0), RD(x1), RD(x2), RD(x3), RD(x4), RD(x5); return x0;} | |
template<class T0, class T1, class T2, class T3, class T4, class T5, class T6> inline T0& RD(T0 &x0, T1 &x1, T2 &x2, T3 &x3, T4 &x4, T5 &x5, T6 &x6){RD(x0), RD(x1), RD(x2), RD(x3), RD(x4), RD(x5), RD(x6); return x0;} | |
template<class T0, class T1> inline void OT(const T0 &x0, const T1 &x1){OT(x0), OT(x1);} | |
template<class T0, class T1, class T2> inline void OT(const T0 &x0, const T1 &x1, const T2 &x2){OT(x0), OT(x1), OT(x2);} | |
template<class T0, class T1, class T2, class T3> inline void OT(const T0 &x0, const T1 &x1, const T2 &x2, const T3 &x3){OT(x0), OT(x1), OT(x2), OT(x3);} | |
template<class T0, class T1, class T2, class T3, class T4> inline void OT(const T0 &x0, const T1 &x1, const T2 &x2, const T3 &x3, const T4 &x4){OT(x0), OT(x1), OT(x2), OT(x3), OT(x4);} | |
template<class T0, class T1, class T2, class T3, class T4, class T5> inline void OT(const T0 &x0, const T1 &x1, const T2 &x2, const T3 &x3, const T4 &x4, const T5 &x5){OT(x0), OT(x1), OT(x2), OT(x3), OT(x4), OT(x5);} | |
template<class T0, class T1, class T2, class T3, class T4, class T5, class T6> inline void OT(const T0 &x0, const T1 &x1, const T2 &x2, const T3 &x3, const T4 &x4, const T5 &x5, const T6 &x6){OT(x0), OT(x1), OT(x2), OT(x3), OT(x4), OT(x5), OT(x6);} | |
inline char& RC(char &a, char &b){RC(a), RC(b); return a;} | |
inline char& RC(char &a, char &b, char &c){RC(a), RC(b), RC(c); return a;} | |
inline char& RC(char &a, char &b, char &c, char &d){RC(a), RC(b), RC(c), RC(d); return a;} | |
inline char& RC(char &a, char &b, char &c, char &d, char &e){RC(a), RC(b), RC(c), RC(d), RC(e); return a;} | |
inline char& RC(char &a, char &b, char &c, char &d, char &e, char &f){RC(a), RC(b), RC(c), RC(d), RC(e), RC(f); return a;} | |
inline char& RC(char &a, char &b, char &c, char &d, char &e, char &f, char &g){RC(a), RC(b), RC(c), RC(d), RC(e), RC(f), RC(g); return a;} | |
inline DB& RF(DB &a, DB &b){RF(a), RF(b); return a;} | |
inline DB& RF(DB &a, DB &b, DB &c){RF(a), RF(b), RF(c); return a;} | |
inline DB& RF(DB &a, DB &b, DB &c, DB &d){RF(a), RF(b), RF(c), RF(d); return a;} | |
inline DB& RF(DB &a, DB &b, DB &c, DB &d, DB &e){RF(a), RF(b), RF(c), RF(d), RF(e); return a;} | |
inline DB& RF(DB &a, DB &b, DB &c, DB &d, DB &e, DB &f){RF(a), RF(b), RF(c), RF(d), RF(e), RF(f); return a;} | |
inline DB& RF(DB &a, DB &b, DB &c, DB &d, DB &e, DB &f, DB &g){RF(a), RF(b), RF(c), RF(d), RF(e), RF(f), RF(g); return a;} | |
inline void RS(char *s1, char *s2){RS(s1), RS(s2);} | |
inline void RS(char *s1, char *s2, char *s3){RS(s1), RS(s2), RS(s3);} | |
template<class T0,class T1>inline T0& RDD(T0&a, T1&b){RDD(a),RDD(b); return a;} | |
template<class T0,class T1,class T2>inline T1& RDD(T0&a, T1&b, T2&c){RDD(a),RDD(b),RDD(c); return a;} | |
template<class T> inline void RST(T &A){memset(A, 0, sizeof(A));} | |
template<class T> inline void FLC(T &A, int x){memset(A, x, sizeof(A));} | |
template<class T> inline void CLR(T &A){A.clear();} | |
template<class T0, class T1> inline void RST(T0 &A0, T1 &A1){RST(A0), RST(A1);} | |
template<class T0, class T1, class T2> inline void RST(T0 &A0, T1 &A1, T2 &A2){RST(A0), RST(A1), RST(A2);} | |
template<class T0, class T1, class T2, class T3> inline void RST(T0 &A0, T1 &A1, T2 &A2, T3 &A3){RST(A0), RST(A1), RST(A2), RST(A3);} | |
template<class T0, class T1, class T2, class T3, class T4> inline void RST(T0 &A0, T1 &A1, T2 &A2, T3 &A3, T4 &A4){RST(A0), RST(A1), RST(A2), RST(A3), RST(A4);} | |
template<class T0, class T1, class T2, class T3, class T4, class T5> inline void RST(T0 &A0, T1 &A1, T2 &A2, T3 &A3, T4 &A4, T5 &A5){RST(A0), RST(A1), RST(A2), RST(A3), RST(A4), RST(A5);} | |
template<class T0, class T1, class T2, class T3, class T4, class T5, class T6> inline void RST(T0 &A0, T1 &A1, T2 &A2, T3 &A3, T4 &A4, T5 &A5, T6 &A6){RST(A0), RST(A1), RST(A2), RST(A3), RST(A4), RST(A5), RST(A6);} | |
template<class T0, class T1> inline void FLC(T0 &A0, T1 &A1, int x){FLC(A0, x), FLC(A1, x);} | |
template<class T0, class T1, class T2> inline void FLC(T0 &A0, T1 &A1, T2 &A2, int x){FLC(A0, x), FLC(A1, x), FLC(A2, x);} | |
template<class T0, class T1, class T2, class T3> inline void FLC(T0 &A0, T1 &A1, T2 &A2, T3 &A3, int x){FLC(A0, x), FLC(A1, x), FLC(A2, x), FLC(A3, x);} | |
template<class T0, class T1, class T2, class T3, class T4> inline void FLC(T0 &A0, T1 &A1, T2 &A2, T3 &A3, T4 &A4, int x){FLC(A0, x), FLC(A1, x), FLC(A2, x), FLC(A3, x), FLC(A4, x);} | |
template<class T0, class T1, class T2, class T3, class T4, class T5> inline void FLC(T0 &A0, T1 &A1, T2 &A2, T3 &A3, T4 &A4, T5 &A5, int x){FLC(A0, x), FLC(A1, x), FLC(A2, x), FLC(A3, x), FLC(A4, x), FLC(A5, x);} | |
template<class T0, class T1, class T2, class T3, class T4, class T5, class T6> inline void FLC(T0 &A0, T1 &A1, T2 &A2, T3 &A3, T4 &A4, T5 &A5, T6 &A6, int x){FLC(A0, x), FLC(A1, x), FLC(A2, x), FLC(A3, x), FLC(A4, x), FLC(A5, x), FLC(A6, x);} | |
template<class T> inline void CLR(priority_queue<T, vector<T>, less<T> > &Q){while (!Q.empty()) Q.pop();} | |
template<class T> inline void CLR(priority_queue<T, vector<T>, greater<T> > &Q){while (!Q.empty()) Q.pop();} | |
template<class T> inline void CLR(stack<T> &S){while (!S.empty()) S.pop();} | |
template<class T> inline void CLR(queue<T> &Q){while (!Q.empty()) Q.pop();} | |
template<class T0, class T1> inline void CLR(T0 &A0, T1 &A1){CLR(A0), CLR(A1);} | |
template<class T0, class T1, class T2> inline void CLR(T0 &A0, T1 &A1, T2 &A2){CLR(A0), CLR(A1), CLR(A2);} | |
template<class T0, class T1, class T2, class T3> inline void CLR(T0 &A0, T1 &A1, T2 &A2, T3 &A3){CLR(A0), CLR(A1), CLR(A2), CLR(A3);} | |
template<class T0, class T1, class T2, class T3, class T4> inline void CLR(T0 &A0, T1 &A1, T2 &A2, T3 &A3, T4 &A4){CLR(A0), CLR(A1), CLR(A2), CLR(A3), CLR(A4);} | |
template<class T0, class T1, class T2, class T3, class T4, class T5> inline void CLR(T0 &A0, T1 &A1, T2 &A2, T3 &A3, T4 &A4, T5 &A5){CLR(A0), CLR(A1), CLR(A2), CLR(A3), CLR(A4), CLR(A5);} | |
template<class T0, class T1, class T2, class T3, class T4, class T5, class T6> inline void CLR(T0 &A0, T1 &A1, T2 &A2, T3 &A3, T4 &A4, T5 &A5, T6 &A6){CLR(A0), CLR(A1), CLR(A2), CLR(A3), CLR(A4), CLR(A5), CLR(A6);} | |
template<class T> inline void CLR(T &A, int n){REP(i, n) CLR(A[i]);} | |
template<class T> inline bool EPT(T &a){return a.empty();} | |
template<class T> inline T& SRT(T &A){sort(ALL(A)); return A;} | |
template<class T, class C> inline T& SRT(T &A, C B){sort(ALL(A), B); return A;} | |
template<class T> inline T& RVS(T &A){reverse(ALL(A)); return A;} | |
template<class T> inline T& UNQQ(T &A){A.resize(unique(ALL(A))-A.begin());return A;} | |
template<class T> inline T& UNQ(T &A){SRT(A);return UNQQ(A);} | |
//} | |
/** Constant List .. **/ //{ | |
const int MOD = int(1e9) + 7; | |
const int INF = 0x3f3f3f3f; | |
const LL INFF = 0x3f3f3f3f3f3f3f3fLL; | |
const DB EPS = 1e-9; | |
const DB OO = 1e20; | |
const DB PI = acos(-1.0); //M_PI; | |
const int dx[] = {-1, 0, 1, 0}; | |
const int dy[] = {0, 1, 0, -1}; | |
//} | |
/** Add On .. **/ //{ | |
// <<= '0. Nichi Joo ., //{ | |
template<class T> inline bool checkMin(T &a,const T b){return b < a ? a = b, 1 : 0;} | |
template<class T> inline bool checkMax(T &a,const T b){return a < b ? a = b, 1 : 0;} | |
template <class T, class C> inline bool checkUpd(T& a, const T b, C c){return c(b,a) ? a = b, 1 : 0;} | |
template<class T> inline T min(T a, T b, T c){return min(min(a, b), c);} | |
template<class T> inline T max(T a, T b, T c){return max(max(a, b), c);} | |
template<class T> inline T min(T a, T b, T c, T d){return min(min(a, b), min(c, d));} | |
template<class T> inline T max(T a, T b, T c, T d){return max(max(a, b), max(c, d));} | |
template<class T> inline T min(T a, T b, T c, T d, T e){return min(min(min(a,b),min(c,d)),e);} | |
template<class T> inline T max(T a, T b, T c, T d, T e){return max(max(max(a,b),max(c,d)),e);} | |
template<class T> inline T sqr(T a){return a*a;} | |
template<class T> inline T cub(T a){return a*a*a;} | |
template<class T> inline T ceil(T x, T y){return (x - 1) / y + 1;} | |
template<class T> T abs(T x){return x>0?x:-x;} | |
inline int sgn(DB x){return x < -EPS ? -1 : x > EPS;} | |
inline int sgn(DB x, DB y){return sgn(x - y);} | |
inline DB cos(DB a, DB b, DB c){return (sqr(a)+sqr(b)-sqr(c))/(2*a*b);} | |
inline DB cot(DB x){return 1./tan(x);}; | |
inline DB sec(DB x){return 1./cos(x);}; | |
inline DB csc(DB x){return 1./sin(x);}; | |
//} | |
// <<= '1. Bitwise Operation ., //{ | |
namespace BO{ | |
inline bool _1(int x, int i){return bool(x&1<<i);} | |
inline bool _1(LL x, int i){return bool(x&1LL<<i);} | |
inline LL _1(int i){return 1LL<<i;} | |
inline LL _U(int i){return _1(i) - 1;}; | |
inline int reverse_bits(int x){ | |
x = ((x >> 1) & 0x55555555) | ((x << 1) & 0xaaaaaaaa); | |
x = ((x >> 2) & 0x33333333) | ((x << 2) & 0xcccccccc); | |
x = ((x >> 4) & 0x0f0f0f0f) | ((x << 4) & 0xf0f0f0f0); | |
x = ((x >> 8) & 0x00ff00ff) | ((x << 8) & 0xff00ff00); | |
x = ((x >>16) & 0x0000ffff) | ((x <<16) & 0xffff0000); | |
return x; | |
} | |
inline LL reverse_bits(LL x){ | |
x = ((x >> 1) & 0x5555555555555555LL) | ((x << 1) & 0xaaaaaaaaaaaaaaaaLL); | |
x = ((x >> 2) & 0x3333333333333333LL) | ((x << 2) & 0xccccccccccccccccLL); | |
x = ((x >> 4) & 0x0f0f0f0f0f0f0f0fLL) | ((x << 4) & 0xf0f0f0f0f0f0f0f0LL); | |
x = ((x >> 8) & 0x00ff00ff00ff00ffLL) | ((x << 8) & 0xff00ff00ff00ff00LL); | |
x = ((x >>16) & 0x0000ffff0000ffffLL) | ((x <<16) & 0xffff0000ffff0000LL); | |
x = ((x >>32) & 0x00000000ffffffffLL) | ((x <<32) & 0xffffffff00000000LL); | |
return x; | |
} | |
template<class T> inline bool odd(T x){return x&1;} | |
template<class T> inline bool even(T x){return !odd(x);} | |
template<class T> inline T low_bit(T x) {return x & -x;} | |
template<class T> inline T high_bit(T x) {T p = low_bit(x);while (p != x) x -= p, p = low_bit(x);return p;} | |
template<class T> inline T cover_bit(T x){T p = 1; while (p < x) p <<= 1;return p;} | |
template<class T> inline int cover_idx(T x){int p = 0; while (_1(p) < x ) ++p; return p;} | |
inline int clz(int x){return __builtin_clz(x);} | |
inline int clz(LL x){return __builtin_clzll(x);} | |
inline int ctz(int x){return __builtin_ctz(x);} | |
inline int ctz(LL x){return __builtin_ctzll(x);} | |
inline int lg2(int x){return !x ? -1 : 31 - clz(x);} | |
inline int lg2(LL x){return !x ? -1 : 63 - clz(x);} | |
inline int low_idx(int x){return !x ? -1 : ctz(x);} | |
inline int low_idx(LL x){return !x ? -1 : ctz(x);} | |
inline int high_idx(int x){return lg2(x);} | |
inline int high_idx(LL x){return lg2(x);} | |
inline int parity(int x){return __builtin_parity(x);} | |
inline int parity(LL x){return __builtin_parityll(x);} | |
inline int count_bits(int x){return __builtin_popcount(x);} | |
inline int count_bits(LL x){return __builtin_popcountll(x);} | |
} using namespace BO;//} | |
// <<= '2. Number Theory .,//{ | |
namespace NT{ | |
#define gcd __gcd | |
inline LL lcm(LL a, LL b){return a*b/gcd(a,b);} | |
inline void INC(int &a, int b){a += b; if (a >= MOD) a -= MOD;} | |
inline int sum(int a, int b){a += b; if (a >= MOD) a -= MOD; return a;} | |
/* 模�两��好� int �� | |
inline int sum(uint a, int b){a += b; a %= MOD;if (a < 0) a += MOD; return a;} | |
inline void INC(int &a, int b){a = sum(a, b);} | |
*/ | |
inline void DEC(int &a, int b){a -= b; if (a < 0) a += MOD;} | |
inline int dff(int a, int b){a -= b; if (a < 0) a += MOD; return a;} | |
inline void MUL(int &a, int b){a = (LL)a * b % MOD;} | |
inline int pdt(int a, int b){return (LL)a * b % MOD;} | |
inline int gcd(int m, int n, int &x, int &y){ | |
x = 1, y = 0; int xx = 0, yy = 1, q; | |
while (1){ | |
q = m / n, m %= n; | |
if (!m){x = xx, y = yy; return n;} | |
DEC(x, pdt(q, xx)), DEC(y, pdt(q, yy)); | |
q = n / m, n %= m; | |
if (!n) return m; | |
DEC(xx, pdt(q, x)), DEC(yy, pdt(q, y)); | |
} | |
} | |
inline int sum(int a, int b, int c){return sum(a, sum(b, c));} | |
inline int sum(int a, int b, int c, int d){return sum(sum(a, b), sum(c, d));} | |
inline int pdt(int a, int b, int c){return pdt(a, pdt(b, c));} | |
inline int pdt(int a, int b, int c, int d){return pdt(pdt(a, b), pdt(c, d));} | |
inline int pow(int a, LL b){ | |
int c(1); while (b){ | |
if (b&1) MUL(c, a); | |
MUL(a, a), b >>= 1; | |
} | |
return c; | |
} | |
template<class T> inline T pow(T a, LL b){ | |
T c(1); while (b){ | |
if (b&1) c *= a; | |
a *= a, b >>= 1; | |
} | |
return c; | |
} | |
template<class T> inline T pow(T a, int b){ | |
return pow(a, (LL)b); | |
} | |
inline int _I(int b){ | |
int a = MOD, x1 = 0, x2 = 1, q; while (1){ | |
q = a / b, a %= b; | |
if (!a) return x2; | |
DEC(x1, pdt(q, x2)); | |
q = b / a, b %= a; | |
if (!b) return x1; | |
DEC(x2, pdt(q, x1)); | |
} | |
} | |
inline void DIV(int &a, int b){MUL(a, _I(b));} | |
inline int qtt(int a, int b){return pdt(a, _I(b));} | |
struct Int{ | |
int val; | |
operator int() const{return val;} | |
Int(int _val = 0):val(_val){ | |
val %= MOD; if (val < 0) val += MOD; | |
} | |
Int(LL _val):val(_val){ | |
_val %= MOD; if (_val < 0) _val += MOD; | |
val = _val; | |
} | |
Int& operator +=(const int& rhs){INC(val, rhs);rTs;} | |
Int operator +(const int& rhs) const{return sum(val, rhs);} | |
Int& operator -=(const int& rhs){DEC(val, rhs);rTs;} | |
Int operator -(const int& rhs) const{return dff(val, rhs);} | |
Int& operator *=(const int& rhs){MUL(val, rhs);rTs;} | |
Int operator *(const int& rhs) const{return pdt(val, rhs);} | |
Int& operator /=(const int& rhs){DIV(val, rhs);rTs;} | |
Int operator /(const int& rhs) const{return qtt(val, rhs);} | |
Int operator-()const{return MOD-*this;} | |
}; | |
} using namespace NT;//} | |
//} | |
/** I/O Accelerator Interface .. **/ //{ | |
#define g (c=getchar()) | |
#define d isdigit(g) | |
#define p x=x*10+c-'0' | |
#define n x=x*10+'0'-c | |
#define pp l/=10,p | |
#define nn l/=10,n | |
template<class T> inline T& RD(T &x){ | |
char c;while(!d);x=c-'0';while(d)p; | |
return x; | |
} | |
template<class T> inline T& RDD(T &x){ | |
char c;while(g,c!='-'&&!isdigit(c)); | |
if (c=='-'){x='0'-g;while(d)n;} | |
else{x=c-'0';while(d)p;} | |
return x; | |
} | |
inline DB& RF(DB &x){ | |
//scanf("%lf", &x); | |
char c;while(g,c!='-'&&c!='.'&&!isdigit(c)); | |
if(c=='-')if(g=='.'){x=0;DB l=1;while(d)nn;x*=l;} | |
else{x='0'-c;while(d)n;if(c=='.'){DB l=1;while(d)nn;x*=l;}} | |
else if(c=='.'){x=0;DB l=1;while(d)pp;x*=l;} | |
else{x=c-'0';while(d)p;if(c=='.'){DB l=1;while(d)pp;x*=l;}} | |
return x; | |
} | |
#undef nn | |
#undef pp | |
#undef n | |
#undef p | |
#undef d | |
#undef g | |
inline char* RS(char *s){ | |
//gets(s); | |
scanf("%s", s); | |
return s; | |
} | |
LL last_ans; int Case; template<class T> inline void OT(const T &x){ | |
//printf("Case #%d: ", ++Case); | |
//printf("%lld\n", x); | |
printf("%.9f\n", x); | |
//printf("%d\n", x); | |
//cout << x << endl; | |
//last_ans = x; | |
} | |
//}/* .................................................................................................................................. */ | |
const int N = int(1e5) + 9, M = N*2; | |
namespace BIT{ | |
const int N = ::N+::N+1; | |
int C[N], n; | |
void Add(int x, int d = 1){ | |
x += ::N; | |
for (;x<N;x+=low_bit(x)) C[x] += d; | |
} | |
int Sum(int x){ | |
x += ::N; | |
int res = 0; for (;x;x^=low_bit(x)) res += C[x]; | |
return res; | |
} | |
int Rsum(int x){ | |
int t = Sum(::N); t -= x + ::N > 0 ? Sum(x) : 0; | |
return t; | |
} | |
} //using namespace BIT; | |
int hd[N], prd[M], suc[M], to[M]; | |
int m; | |
void add_edge(int a, int b){ | |
to[m] = b, suc[prd[hd[a]] = m] = hd[a], hd[a] = m++; | |
} | |
void add_edgee(int a, int b) { | |
add_edge(a, b); | |
add_edge(b, a); | |
} | |
#define aa to[i^1] | |
#define bb to[i] | |
#define v bb | |
inline void del(int i){ | |
if (hd[aa] == i) prd[hd[aa] = suc[i]] = 0; | |
else prd[suc[i]] = prd[i], suc[prd[i]] = suc[i]; | |
} | |
inline void rsm(int i){ | |
if (suc[i] == hd[aa]) hd[aa] = i; | |
prd[suc[i]] = suc[prd[i]] = i; | |
} | |
inline void dell(int i){ | |
del(i), del(i^1); | |
} | |
inline void rsmm(int i){ | |
rsm(i), rsm(i^1); | |
} | |
int n, k; int sz[N], dep[N]; LL ans; VI L; | |
void Scann(int u, int p) { | |
L.PB(dep[u]); REP_G(i, u) if (v != p){ | |
dep[v] = dep[u] + 1; | |
Scann(v, u); | |
} | |
} | |
void Scan(int u){ | |
CLR(L); dep[u] = 1; L.PB(dep[u]); | |
REP_G(i, u){ | |
dep[v] = dep[u] + 1; | |
Scann(v, u); | |
} | |
} | |
namespace TDC{ | |
int nn, cc, c; | |
void dfsc(int u, int p = 0){ | |
int ss = 0; sz[u] = 1; REP_G(i, u) if (v != p){ | |
dfsc(v, u), sz[u] += sz[v]; | |
checkMax(ss, sz[v]); | |
} | |
checkMax(ss, nn - sz[u]); | |
if (ss <= cc) cc = ss, c = u; | |
} | |
void dfs0(int u, int p = -1){ | |
sz[u] = 1; REP_G(i, u) if (v != p){ | |
dep[v] = dep[u] + 1; | |
dfs0(v, u); | |
sz[u] += sz[v]; | |
} | |
} | |
void dfs1(int u, int p){ | |
L.PB(dep[u]); | |
REP_G(i, u) if (v != p){ | |
dfs1(v, u); | |
} | |
} | |
void dfs2(int u, int p = -1){ | |
BIT::Add(dep[u], -1); | |
REP_G(i, u) if (v != p){ | |
dfs2(v, u); | |
} | |
} | |
void gao(int u = 1){ | |
cc = INF, dfsc(u), u = c; | |
dep[u] = 1; dfs0(u); BIT::Add(1); | |
REP_G(i, u){ | |
CLR(L); dfs1(v, u); | |
ECH(it, L) ans += BIT::Rsum(k-*it); | |
ECH(it, L) BIT::Add(*it); | |
} | |
dfs2(u); | |
REP_G(i, u){ | |
nn = sz[v], dell(i), gao(v), rsmm(i); | |
} | |
} | |
} | |
VI Circle; PII sta[N]; int pos[N], top = 0; | |
void dfs(int u = 1, int p = -1){ // Find_Circle | |
sta[pos[u]=++top].fi = u; | |
REP_G(i, u) if (i != (p^1)){ | |
sta[top].se = i; | |
if (!pos[v]) dfs(v, i); | |
else { | |
FOR_1(ii, pos[v], top) { | |
Circle.PB(sta[ii].fi); | |
dell(sta[ii].se); | |
} | |
} | |
} | |
--top; | |
} | |
int main(){ | |
#ifndef ONLINE_JUDGE | |
freopen("in.txt", "r", stdin); | |
//freopen("out.txt", "w", stdout); | |
#endif | |
m = 2; int m; RD(n, m, k); DO(m){ | |
int a, b; RD(a, b); | |
add_edgee(a, b); | |
} | |
if (m == n-1) TDC::gao(); | |
else { | |
dfs(); ECH(c, Circle) TDC::gao(*c); | |
int d = 0; | |
ECH(c, Circle){ | |
Scan(*c); | |
ECH(it, L) BIT::Add(*it-d); | |
++d; | |
} | |
ECH(c, Circle){ | |
Scan(*c); | |
ECH(it, L) BIT::Add(*it-d+SZ(Circle), -1); | |
ECH(it, L) ans += BIT::Rsum(k-d-*it); | |
ECH(it, L) BIT::Add(*it-d); | |
++d; | |
} | |
ECH(c, Circle){ | |
Scan(*c); | |
ECH(it, L) BIT::Add(*it-d+SZ(Circle), -1); | |
++d; | |
} | |
} | |
printf("%lld\n", ans); | |
} |
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