codeforces 847G University Classes

http://codeforces.com/problemset/problem/847/G

给出一张0和1的图，遍历所有列，找出1最多的一列。

#include<iostream>#include<cstring>#include<cstdio>using namespace std;int main(){char a[1111][8];int n;while(scanf("%d",&n)!=EOF){memset(a,0,sizeof(a));for(int i=1;i<=n;i++){cin>>a[i]; }int ans=0;for(int s=0;s<7;s++){int zs=0;for(int ss=1;ss<=n;ss++){if(a[ss][s]=='1')zs++;}if(zs>ans)ans=zs;}cout<<ans<<endl;}return 0;}