Submission #931364

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
931364	2024-02-21 16:32:33	rainboy	매트 (KOI15_mat)	C11	100 / 100	28 ms	35676 KiB

mat

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#include <stdio.h>
#include <string.h>
#define N 3000
int max(int a, int b) { return a > b ? a : b; }
unsigned int Z = 12345;
int rand_() {
  return (Z *= 3) >> 1;
}
int tt[N], xx[N * 2], yy[N], ww[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) {
      int c = xx[ii[j]] != xx[i_] ? xx[ii[j]] - xx[i_] : (i_ & 1) - (ii[j] & 1);
      if (c == 0)
        j++;
      else if (c < 0) {
        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)

mat.c: In function 'main':
mat.c:42:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   42 |  scanf("%d%d", &n, &y_);
      |  ^~~~~~~~~~~~~~~~~~~~~~
mat.c:44:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   44 |   scanf("%d%d%d%d%d", &tt[i], &xx[i << 1 | 0], &xx[i << 1 | 1], &yy[i], &ww[i]);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 8 / 8
• Subtask 2: 13 / 13
• Subtask 3: 25 / 25
• Subtask 4: 11 / 11
• Subtask 5: 43 / 43