15 January 2016

Codeforces 96A. Football

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/***
Md. Namzul Hasan
Shahjalal University of Science & Technology,Sylhet.
hasan08sust@gmail.com
***/
#include<bits/stdc++.h>
using namespace std ;
typedef long long ll ;
typedef int in ;
typedef unsigned long long ull ;
const double pi = 2*acos(0) ;
#define maxi 40000
#define pf printf
#define sc scanf
#define pb push_back
#define MEM(x,y) (memset((x),(y),sizeof(x)))
#define MIN(x,y) ((x) < (y) ? (x) : (y))
#define MAX(x,y) ((x) > (y) ? (x) : (y))
#define load(array,size)  for(int i=0 ; i<size ; i++) cin>>array[i]  ;
#define new_line  pf("\n")
#define clear_data(array) memset(array,0,sizeof(array))
#define highest_int 2147483647

int main()
{
    string str ;
    int i ,cnt =1 , flag =0 ,l=0;
    //ch = str[0] ;
    cin>>str ;

    for(i=1 ; i<str.size() ; i++)
    {
        if(str[i]==str[i-1])
        {
            cnt++ ;
            if(cnt==7)
            {
                pf("YES") ;
                l =1 ;
                break ;
            }
        }
        else
            cnt =1 ;
    }
    if(cnt<7)
        pf("NO") ;
    return 0;
}

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UVA 10679 - I Love Strings!!