Submission #75698213

---

Source Code Expand

#include <bits/stdc++.h>
using namespace std;
#include "atcoder/all"
using namespace atcoder;
#define rep(i, n) for (int i = 0; i < (n); ++i)
//using mint=modint998244353;
void solve(){
    int n,m;
    cin>>n>>m;
    int num=n;
    string t="";
    vector<string>s(n);
    rep(i,n)cin>>s[i];
    vector<int>a(n,0);
    rep(i,m){
        int tmp=0;
        rep(j,n)if(s[j][i]=='1' and a[j]==0)tmp++;
        if(tmp>num-tmp){
            t.push_back('1');
            rep(j,n)if(s[j][i]=='1' and a[j]==0){
                a[j]=1;
                num--;
            }
        }
        else{
            t.push_back('0');
            rep(j,n)if(s[j][i]=='0' and a[j]==0){
                a[j]=1;
                num--;
            }
        }
    }
    if(num==0){
        cout<<"Yes"<<endl;
        cout<<t;
    }
    else cout<<"No";
}
int main(){
    ios::sync_with_stdio(false);
	cin.tie(nullptr);
    int t=1;
    //cin>>t;
    while(t--)solve();
}

Submission Info

Judge Result