Created
June 21, 2014 17:01
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#include <iostream> | |
#include <fstream> | |
#include <limits.h> | |
using namespace std; | |
ifstream f("date.in"); | |
int n; | |
int m[10]; | |
void punctulA() { | |
int k = 0; | |
for (int i = 1 ; k!=n ; i++) { | |
for (int j = 1 ; j <= i && k!=n; j++) | |
{ | |
cout << i << " "; | |
k++; | |
} | |
} | |
} | |
void punctulB(int n, int &nMax, int &sMin) { | |
int s[200]; | |
s[1] = 1; | |
for (int i = 2; ;i++) { | |
s[i] = s[i-1] + i; | |
if (n > s[i-1] && n <= s[i]) { | |
nMax = i; | |
sMin = s[i-1]; | |
break; | |
} | |
} | |
} | |
void boboPunctC() { | |
int t =1; | |
for(int i=1;i<=9;i++) | |
if(m[i]!=i) | |
{ | |
if(m[i+1]!=0) | |
{ | |
t=0; | |
i=10; | |
} | |
} | |
else | |
if(m[i]==0) | |
for(int j=i+1;j<=9;j++) | |
if(m[j]!=0) | |
{ | |
t=0; | |
i=10; | |
j=10; | |
} | |
if(t==1) cout<<"DA"; | |
else cout<<"NU"; | |
} | |
int main() | |
{ | |
f >> n; | |
int y[n+1]; | |
for(int i = 1 ; i <= n ; i ++){ | |
f>>y[i]; | |
m[y[i]]++; | |
} | |
int nMax , sMin; | |
punctulB(n, nMax, sMin); | |
int dif = n - sMin; | |
int t = 1; | |
for (int i = 1 ; i <= nMax ; i ++) | |
if (m[i] != i) { | |
t = 0; | |
} | |
if (m[nMax] == dif) | |
t = 1; | |
cout << t; | |
return 0; | |
} |
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