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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#74253 | #5438. Half Mixed | XKError | WA | 201ms | 3740kb | C++14 | 1.2kb | 2023-01-31 11:41:42 | 2023-01-31 11:41:44 |
Judging History
answer
#include <bits/stdc++.h>
#define maxn 5000005
#define ll long long
using namespace std;
int n, m;
int a[maxn];
ll c(int x) {
return 1ll * x * (x + 1) / 2;
}
int main() {
int t;
scanf("%d", &t);
while (t--) {
scanf("%d%d", &n, &m);
if (c(n) % 2 && c(m) % 2) {
puts("No");
continue;
}
puts("Yes");
if (c(n) & 1) {
ll s = c(m) / 2;
int w = 0;
int f = 0;
for (int i = m / 2 + 1; i; i--) {
while (s > c(i) || (s == c(i) && w + i == m)) {
// cout<<"@"<<i<<endl;
s -= c(i);
for (int j = 1; j <= i; j++) a[++w] = f;
f ^= 1;
}
}
// cout<<s<<endl;
// for (int w = 1; w <= )
for (int i = 1; i <= n; i++) {
for (int j = 1; j <= m; j++) {
printf("%d ", a[j]);
}
puts("");
}
// assert(w == m);
}
else {
ll s = c(n) / 2;
int w = 0;
int f = 0;
for (int i = n / 2 + 1; i; i--) {
while (s > c(i) || (s == c(i) && w + i == n)) {
s -= c(i);
for (int j = 1; j <= i; j++) a[++w] = f;
f ^= 1;
}
}
for (int i = 1; i <= n; i++) {
for (int j = 1; j <= m; j++) {
printf("%d ", a[i]);
}
puts("");
}
}
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 2ms
memory: 3532kb
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: 201ms
memory: 3740kb
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 0 0 1 1 1 0 0 0 Yes 0 0 0 0 1 1 0 0 No No No Yes 0 0 0 0 1 1 1 1 0 0 0 0 Yes 0 0 0 0 0 0 1 1 1 0 0 0 No No Yes 0 0 0 0 1 1 0 No Yes 0 0 0 0 0 1 1 1 1 1...
result:
wrong answer 34 Mixed Submatrices Found, but 33 Expected (test case 56)