Submission #377759

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
377759	2021-03-15 00:09:15	rainboy	Palembang Bridges (APIO15_bridge)	C11	100 / 100	736 ms	11500 KiB

bridge

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#include <stdio.h>
#define N 100000
#define INF 0x3f3f3f3f3f3f3f3fLL
long long min(long long a, long long b) { return a < b ? a : b; }
unsigned int X = 12345;
int rand_() {
  return (X *= 3) >> 1;
}
int *aa;
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;
      }
    sort(ii, l, i);
 
 
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Compilation message (stderr)

bridge.c: In function 'main':
bridge.c:113:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
  113 |  scanf("%d%d", &k, &n);
      |  ^~~~~~~~~~~~~~~~~~~~~
bridge.c:119:3: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
  119 |   scanf("%s%d%s%d", s, &l, t, &r);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 8 / 8
• Subtask 2: 14 / 14
• Subtask 3: 9 / 9
• Subtask 4: 32 / 32
• Subtask 5: 37 / 37