Submission #514947

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
514947	2022-01-18 22:01:52	rainboy	초대 (JOI12_invitation)	C11	100 / 100	206 ms	20392 KiB

invitation

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#include <stdio.h>
#include <string.h>
#define M 100000
#define N_  (M * 4)
#define M_  (M + N_)
unsigned int X = 12345;
int rand_() {
  return (X *= 3) >> 1;
}
int xx[N_], xx_[N_], ii[M_], jj[M_], ww[M_];
int compare_x(int h1, int h2) {
  return xx[h1] != xx[h2] ? xx[h1] - xx[h2] : (h1 & 1) - (h2 & 1);
}
int compare_w(int h1, int h2) {
  return ww[h2] - ww[h1];
}
int (*compare)(int, int);
void sort(int *hh, int l, int r) {
  while (l < r) {
    int i = l, j = l, k = r, h = hh[l + rand_() % (r - l)], tmp;
    while (j < k) {
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

invitation.c: In function 'main':
invitation.c:114:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  114 |  scanf("%d%d%*d%d", &n1, &n2, &m), n = n1 + n2;
      |  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
invitation.c:116:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  116 |   scanf("%d%d%d%d%d", &xx[h << 2 | 0], &xx[h << 2 | 1], &xx[h << 2 | 2], &xx[h << 2 | 3], &ww[h]);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• 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
• Subtask 8: 10 / 10
• Subtask 9: 10 / 10
• Subtask 10: 10 / 10