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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#779406#5438. Half MixedDarkmasterWA 104ms3584kbC++141.2kb2024-11-24 18:52:292024-11-24 18:52:30

Judging History

你现在查看的是最新测评结果

  • [2024-11-24 18:52:30]
  • 评测
  • 测评结果:WA
  • 用时:104ms
  • 内存:3584kb
  • [2024-11-24 18:52:29]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;

const int N = 1e6 + 10;
typedef long long ll;
int a[N];
ll n, m;

void solve(){
    int flagg = 0;
    cin >> n >> m;
    if(m == 1 || m == 2) swap(n, m), flagg = 1;
    if(n * (n + 1) * m * (m + 1) / 4 % 2 == 1){
        cout << "No" << '\n';
        return;
    }
    int flag = 0;
    ll res = m * (m + 1) / 4;
    ll nw = m;
    int NW = 0;
    while(1){
        while(nw * (nw + 1) / 2 + m - (NW + nw) > res && nw > 1) nw --;
        res -= nw * (nw + 1) / 2;
        for(int i = 1; i <= nw; i ++) a[NW + i] = flag;
        flag = flag ^ 1; 
        NW += nw;
        if(NW >= m) break;
    }
    // cout << n << m << '\n';
    cout << "Yes" << '\n';
    if(flagg){
        for(int i = 1; i <= m; i ++){
            for(int j = 1; j <= n; j ++) cout << a[i] << ' ';
            cout << '\n';
        }
        return;
    }
    for(int i = 1; i <= n; i ++){
        for(int j = 1; j <= m; j ++) cout << a[j] << ' ';
        cout << '\n';
    }
}

int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    int T;
    cin >> T;
    while(T --) solve();
    return 0;
}

Details

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Test #1:

score: 100
Accepted
time: 0ms
memory: 3568kb

input:

2
2 3
1 1

output:

Yes
0 1 0 
0 1 0 
No

result:

ok OK, Accepted. (2 test cases)

Test #2:

score: -100
Wrong Answer
time: 104ms
memory: 3584kb

input:

5382
1 1
1 2
2 1
1 3
2 2
3 1
1 4
2 3
3 2
4 1
1 5
2 4
3 3
4 2
5 1
1 6
2 5
3 4
4 3
5 2
6 1
1 7
2 6
3 5
4 4
5 3
6 2
7 1
1 8
2 7
3 6
4 5
5 4
6 3
7 2
8 1
1 9
2 8
3 7
4 6
5 5
6 4
7 3
8 2
9 1
1 10
2 9
3 8
4 7
5 6
6 5
7 4
8 3
9 2
10 1
1 11
2 10
3 9
4 8
5 7
6 6
7 5
8 4
9 3
10 2
11 1
1 12
2 11
3 10
4 9
5 8
6 ...

output:

No
No
No
Yes
0 1 0 
No
Yes
0 
1 
0 
Yes
0 0 1 0 
Yes
0 1 0 
0 1 0 
Yes
0 0 
1 1 
0 0 
Yes
0 
0 
1 
0 
No
Yes
0 0 1 0 
0 0 1 0 
Yes
0 1 0 
0 1 0 
0 1 0 
Yes
0 0 
0 0 
1 1 
0 0 
No
No
No
Yes
0 0 1 0 
0 0 1 0 
0 0 1 0 
Yes
0 1 0 
0 1 0 
0 1 0 
0 1 0 
No
No
Yes
0 0 0 0 1 1 0 
No
Yes
0 0 1 1 0 
0 0 1 1 0...

result:

wrong answer 48 Mixed Submatrices Found, but 45 Expected (test case 24)