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#include <bits//stdc++.h> | |
using namespace std; | |
#define MP make_pair | |
#define PB push_back | |
#define INF (int)1e9 | |
#define EPS 1e-9 | |
#define PI 3.1415926535897932384626433832795 | |
#define MOD 1000000007 |
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void multiply(char a[], char b[], char res[]) | |
{ | |
int i, j, k, mul, carry; | |
// if one number is zero, then result obviously zero | |
if(strcmp(a, "0") == 0 || strcmp(b, "0") == 0) | |
{ | |
strcpy(res, "0"); | |
return; | |
} |
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void primeFactors(int n) | |
{ | |
// Print the number of 2s that divide n | |
while (n%2 == 0) | |
{ | |
printf("%d ", 2); | |
n = n/2; | |
} | |
// n must be odd at this point. So we can skip one element (Note i = i +2) |
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int main() | |
{ | |
int n, cnt = 0; | |
cin >> n; | |
while(n) | |
{ | |
n &= (n-1); | |
cnt++; | |
} | |
cout << cnt <<endl; |
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int countSetBits(unsigned int n) | |
{ | |
unsigned int count = 0; | |
while(n) | |
{ | |
count += n & 1; // ভাগশেষ ০ নাকি ১ । যদি ১ হয় তাহলে কাউন্টের মান বেড়ে যাবে । | |
n >>= 1; // n কে দুই দিয়ে ভাগ করা হচ্ছে । | |
} | |
return count; | |
} |
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ll totient (ll i) | |
{ | |
ll res; /* Result */ | |
ll j; | |
if (i==1) return 1; | |
res=i; | |
// Check for divisibility by every prime number below the square root. |
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bool isPrime(int n) { | |
if(n < 2) return false; | |
for(int i = 2; i < sqrt(n); i++) | |
if(n%i == 0) return false; | |
} |
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#define MAX 1000001 | |
char prime[MAX]; // 0 দিয়ে initialize করতে হবে | |
void seive( int n ) // n পর্যন্ত প্রাইম বের করব | |
{ | |
int x = sqrt( n ); | |
prime[0] = prime[1] = 1; // 0 এবং 1 প্রাইম না | |
for( int i = 4; i <= n; i += 2 ) // জোড় সংখ্যাগুলোকে বাদ দিয়ে দিব | |
prime[i] = 1; |
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vector<char> vc; | |
char s1[1005] , s2[1005]; | |
int dp[105][105]; | |
void backtrace(int i, int j) | |
{ | |
if(i == 0 || j == 0) | |
return; | |
else if(s1[i-1] == s2[j-1]) { | |
backtrace(i-1, j-1); |
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int main() | |
{ | |
int n; | |
scanf("%d", &n); | |
map<string, int>mp; | |
for(int i=0; i<n; i++){ | |
string s; | |
cin>>s; | |
if(mp[s] == 0) {mp[s]++; printf("OK\n");} | |
else { |
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