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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#168428 | #5438. Half Mixed | Zhou_JK# | WA | 168ms | 3632kb | C++23 | 2.8kb | 2023-09-08 14:49:20 | 2023-09-08 14:49:20 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
long long way(int x) {
return 1ll * x * (x + 1) / 2;
}
void solve() {
int n, m;
cin >> n >> m;
if (way(n) % 2 == 1 && way(m) % 2 == 1) {
cout << "No\n";
return;
}
cout << "Yes\n";
if (way(n) % 2 == 0) {
long long w = way(n) / 2;
vector<int> lens;
for (int i = n; i >= 3; i--) {
if (w >= way(i) + n) {
w -= way(i);
lens.push_back(i);
break;
}
}
int s = lens.size() ? lens[0] : 0;
for (int i = 0; i <= n - s; i++) {
int p = n - s - i;
if (p % 2 == 0) {
int j = p / 2;
if (i + j * 3 == w) {
int x = i;
while (x--) {
lens.push_back(1);
}
x = j;
while (x--) {
lens.push_back(2);
}
break;
}
}
}
int i = 0;
vector<int> col(n);
int p = 0;
for (int x : lens) {
while (x--) col[i++] = p;
p ^= 1;
}
for (int i = 0; i < n; i++) {
for (int j = 0; j < m; j++) {
cout << col[i] << " ";
}
cout << "\n";
}
return;
}
if (way(m) % 2 == 0) {
long long w = way(m) / 2;
vector<int> lens;
for (int i = m; i >= 3; i--) {
if (w >= way(i) + m) {
w -= way(i);
lens.push_back(i);
break;
}
}
int s = lens.size() ? lens[0] : 0;
for (int i = 0; i <= m - s; i++) {
int p = m - s - i;
if (p % 2 == 0) {
int j = p / 2;
if (i + j * 3 == w) {
int x = i;
while (x--) {
lens.push_back(1);
}
x = j;
while (x--) {
lens.push_back(2);
}
break;
}
}
}
int i = 0;
vector<int> col(m);
int p = 0;
for (int x : lens) {
while (x--) col[i++] = p;
p ^= 1;
}
for (int i = 0; i < n; i++) {
for (int j = 0; j < m; j++) {
cout << col[j] << " ";
}
cout << "\n";
}
return;
}
}
int main() {
ios::sync_with_stdio(false);
int t;
cin >> t;
while (t--) {
solve();
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 2ms
memory: 3624kb
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: 168ms
memory: 3632kb
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 1 0 0 Yes 0 1 0 0 1 0 Yes 0 0 1 1 0 0 Yes 0 1 0 0 No Yes 0 1 0 0 0 1 0 0 Yes 0 0 0 1 1 1 0 0 0 Yes 0 0 1 1 0 0 0 0 No No No Yes 0 0 0 0 1 1 1 1 0 0 0 0 Yes 0 0 0 1 1 1 0 0 0 0 0 0 No No Yes 0 0 0 0 0 0 0 No Yes 0 0 0 0 0 1 1 1 1 1...
result:
wrong answer 0 Mixed Submatrices Found, but 14 Expected (test case 22)