QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#533974 | #5438. Half Mixed | Sunlight9 | WA | 144ms | 11560kb | C++20 | 1.6kb | 2024-08-26 17:57:45 | 2024-08-26 17:57:46 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
ll num[1000003];
void solve() {
ll n, m;
cin >> n >> m;
ll tot = n * (n + 1LL) / 2LL;
int fl = 0;
if (tot % 2) fl = 1;
tot *= m * (m + 1LL) / 2LL;
if (tot & 1) {
cout << "No\n";
return;
}
ll k = n;
if (fl) k = m;
// cerr << k << '\n';
ll tar = k * (k + 1LL) / 4LL;
// cerr << tar << '\n';
vector<int> a;
while (true) {
if (!tar) break;
auto t = upper_bound(num + 1, num + 1 + 1000000, tar) - num - 1;
while (true) {
ll lst1 = tar - (ll)t * ((ll)t + 1LL) / 2LL;
ll lst2 = k - t;
if (lst1 >= lst2) {
a.emplace_back(t);
tar = lst1;
k = lst2;
break;
}
t--;
}
}
// for (int i = 0; i < ssize(a); ++i) {
// cerr << a[i] << " \n"[i == ssize(a) - 1];
// }
cout << "Yes\n";
int row = m;
if (fl) row = n;
for (int i = 1; i <= row; ++i) {
int out = 1;
for (auto cnt : a) {
for (int j = 1; j <= cnt; ++j) {
cout << out << " ";
}
out ^= 1;
}
cout << '\n';
}
}
int main() {
cin.tie(nullptr) -> sync_with_stdio(false);
for (int i = 1; i <= 1000000; ++i) {
num[i] = num[i - 1] + (ll)i;
}
// for (int i = 1; i <= 10; ++i) {
// cerr << num[i] << " \n"[i == 10];
// }
int _;
cin >> _;
while (_--) solve();
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 11560kb
input:
2 2 3 1 1
output:
Yes 1 0 1 1 0 1 No
result:
ok OK, Accepted. (2 test cases)
Test #2:
score: -100
Wrong Answer
time: 144ms
memory: 11308kb
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 1 0 1 No Yes 1 0 1 Yes 1 1 0 1 Yes 1 0 1 1 0 1 Yes 1 0 1 1 0 1 Yes 1 1 0 1 No Yes 1 1 0 1 1 1 0 1 Yes 1 0 1 1 0 1 1 0 1 Yes 1 1 0 1 1 1 0 1 No No No Yes 1 0 1 1 0 1 1 0 1 1 0 1 Yes 1 1 0 1 1 1 0 1 1 1 0 1 No No Yes 1 1 1 1 0 0 1 No Yes 1 0 1 1 0 1 1 0 1 1 0 1 ...
result:
wrong answer 14 Mixed Submatrices Found, but 15 Expected (test case 14)