Received the above error when submitting my code, with the qualification "FAIL- Participant has the answer but jury does not (Test Case 393)". This is my first time getting this error, but I assume it is a problem on the checker side. Is there somewhere I can report this? In case this is the place, here is my code: ↵
↵
```#include <stdio.h>↵
↵
int main()↵
{↵
int t;↵
scanf("%d", &t);↵
for (int i = 0; i < t; i++)↵
{↵
int n, k;↵
scanf("%d%d", &n, &k);↵
if (k % 2)↵
{↵
printf("YES\n");↵
for (int j = 1; j < n; j+=2)↵
{↵
printf("%d %d\n", j, j + 1);↵
}↵
}↵
↵
else↵
{↵
int num_valid = 0;↵
for (int j = 2; j < n + 1; j += 2)↵
{↵
if (j % 4 > 0 && (j + k) % 4 == 0)↵
{↵
num_valid++;↵
}↵
}↵
if (num_valid < n / 4 || k == 0)↵
{↵
printf("NO\n");↵
continue;↵
}↵
↵
printf("YES\n");↵
int max_j = 0;↵
for (int j = 1; j < n; j+=2)↵
{↵
if (j + 3 + 2 * (j / 2) < n + 1)↵
{↵
max_j= j;↵
printf("%d %d\n", j, j + (3 + 2 * (j / 2)));↵
}↵
↵
}↵
↵
max_j += 2;↵
for (int j = 2; j < n + 1; j+=2)↵
{↵
if (j % 4 > 0)↵
{↵
printf("%d %d\n", j, max_j);↵
max_j += 2;↵
}↵
}↵
}↵
}↵
}```↵
↵
The error came in the second test case run.
↵
↵
int main()↵
{↵
int t;↵
scanf("%d", &t);↵
for (int i = 0; i < t; i++)↵
{↵
int n, k;↵
scanf("%d%d", &n, &k);↵
if (k % 2)↵
{↵
printf("YES\n");↵
for (int j = 1; j < n; j+=2)↵
{↵
printf("%d %d\n", j, j + 1);↵
}↵
}↵
↵
else↵
{↵
int num_valid = 0;↵
for (int j = 2; j < n + 1; j += 2)↵
{↵
if (j % 4 > 0 && (j + k) % 4 == 0)↵
{↵
num_valid++;↵
}↵
}↵
if (num_valid < n / 4 || k == 0)↵
{↵
printf("NO\n");↵
continue;↵
}↵
↵
printf("YES\n");↵
int max_j = 0;↵
for (int j = 1; j < n; j+=2)↵
{↵
if (j + 3 + 2 * (j / 2) < n + 1)↵
{↵
max_j= j;↵
printf("%d %d\n", j, j + (3 + 2 * (j / 2)));↵
}↵
↵
}↵
↵
max_j += 2;↵
for (int j = 2; j < n + 1; j+=2)↵
{↵
if (j % 4 > 0)↵
{↵
printf("%d %d\n", j, max_j);↵
max_j += 2;↵
}↵
}↵
}↵
}↵
}
↵
The error came in the second test case run.
