제출 #817121

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
817121	2023-08-09 09:40:11	rainboy	Cell Automaton (JOI23_cell)	C11	24 / 100	422 ms	128872 KiB

cell

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#include <stdio.h>
#define N 100000
#define X 2000
#define T 1000
int min(int a, int b) { return a < b ? a : b; }
unsigned int Z = 12345;
int rand_() {
  return (Z *= 3) >> 1;
}
int xx[N], yy[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 (xx[ii[j]] == xx[i_])
        j++;
      else if (xx[ii[j]] < xx[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;
      }
 
 
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컴파일 시 표준 에러 (stderr) 메시지

cell.c: In function 'main':
cell.c:40:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   40 |  scanf("%d%d", &n, &q);
      |  ^~~~~~~~~~~~~~~~~~~~~
cell.c:42:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   42 |   scanf("%d%d", &xx[i], &yy[i]);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cell.c:74:4: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   74 |    scanf("%d", &t);
      |    ^~~~~~~~~~~~~~~
cell.c:84:4: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   84 |    scanf("%d", &t);
      |    ^~~~~~~~~~~~~~~

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