Submission #407408

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
407408	2021-05-18 22:09:30	rainboy	Domino (COCI15_domino)	C11	160 / 160	3456 ms	59080 KiB

domino

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#include <stdio.h>
#include <string.h>
#define N 2000
int di[] = { -1, 1, 0, 0 };
int dj[] = { 0, 0, -1, 1 };
unsigned int X = 12345;
int rand_() {
  return (X *= 3) >> 1;
}
int aa[N * N], n;
void sort(int *ii, int l, int r) {
  while (l < r) {
    int i = l, j = l, k = r, i_ = ii[l + rand_() % (r - l)], tmp;
    while (j < k)
      if (aa[ii[j]] == aa[i_])
        j++;
      else if (aa[ii[j]] < aa[i_]) {
        tmp = ii[i], ii[i] = ii[j], ii[j] = tmp;
        i++, j++;
      } else {
        k--;
        tmp = ii[j], ii[j] = ii[k], ii[k] = tmp;
      }
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

domino.c: In function 'main':
domino.c:86:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   86 |  scanf("%d%d", &n, &k);
      |  ^~~~~~~~~~~~~~~~~~~~~
domino.c:90:4: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   90 |    scanf("%d", &aa[i * n + j]), ans += aa[i * n + j];
      |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 10 / 10
• Subtask 5: 10 / 10
• Subtask 6: 10 / 10
• Subtask 7: 10 / 10
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• Subtask 10: 10 / 10
• Subtask 11: 10 / 10
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• Subtask 15: 10 / 10
• Subtask 16: 10 / 10