제출 #779141

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
779141		1075508020060209tc	Sajam (COCI18_sajam)	C++14	45 / 90	3024 ms	16892 KiB

sajam

#include<bits/stdc++.h>
using namespace std;
#define int long long
#define X first
#define Y second

int n;int K;
int gr[1010][1010];
int ogr[1010][1010];
int rcal(int r){
int cnt=0;
for(int i=1;i<=n;i++){
    cnt+=gr[r][i];
}
return min(cnt,n-cnt);
}

void solve(int rw){
for(int i=1;i<=n;i++){
    if(gr[rw][i]==0){
        for(int j=1;j<=n;j++){
            gr[j][i]^=1;
        }
    }
}
int cal=0;
for(int i=1;i<=n;i++){
    cal+=rcal(i);
}
if(cal<=K){
    cout<<"DA\n";exit(0);
}
}

void rst(){
for(int i=1;i<=n;i++){
    for(int j=1;j<=n;j++){
        gr[i][j]=ogr[i][j];
    }
}
}

signed main(){
cin>>n>>K;
for(int i=1;i<=n;i++){
    string s;
    cin>>s;
    s="*"+s;
    for(int j=1;j<=n;j++){
        if(s[j]=='o'){
            gr[i][j]=0;
        }else{
            gr[i][j]=1;
        }
        ogr[i][j]=gr[i][j];
    }
}


for(int i=1;i<=n;i++){
    rst();
    solve(i);
    rst();
    for(int j=1;j<=n;j++){
        gr[i][j]^=1;
    }
    solve(i);
}

cout<<"NE\n";





}

• Subtask 1: 15 / 15
• Subtask 2: 0 / 15
• Subtask 3: 15 / 15
• Subtask 4: 15 / 15
• Subtask 5: 0 / 15
• Subtask 6: 0 / 15