Submission #829665

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
829665	2023-08-18 13:56:13	rainboy	Curtains (NOI23_curtains)	C11	100 / 100	406 ms	31664 KiB

curtains

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#include <stdio.h>
#define N 500000
#define K 500000
#define Q 500000
#define N_  (1 << 19) /* N_ = pow2(ceil(log2(N)) */
#define INF 0x3f3f3f3f
int min(int a, int b) { return a < b ? a : b; }
int max(int a, int b) { return a > b ? a : b; }
int st[N_ * 2], n_, mode;
void build(int *aa, int n) {
  int i;
  n_ = 1;
  while (n_ < n)
    n_ <<= 1;
  for (i = 0; i < n; i++)
    st[n_ + i] = i < n ? aa[i] : (mode == 0 ? INF : -1);
  for (i = n_ - 1; i > 0; i--)
    st[i] = mode == 0 ? min(st[i << 1 | 0], st[i << 1 | 1]) : max(st[i << 1 | 0], st[i << 1 | 1]);
}
int query(int l, int r) {
  int x = mode == 0 ? INF : -1;
  for (l += n_, r += n_; l <= r; l >>= 1, r >>= 1) {
    if ((l & 1) == 1)
 
 
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Compilation message (stderr)

curtains.c: In function 'main':
curtains.c:131:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  131 |  scanf("%d%d%d", &n, &k, &q);
      |  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
curtains.c:133:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  133 |   scanf("%d%d", &ll[g], &rr[g]), ll[g]--, rr[g]--;
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
curtains.c:137:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  137 |   scanf("%d%d", &ll_[h], &rr_[h]), ll_[h]--, rr_[h]--;
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 3 / 3
• Subtask 2: 6 / 6
• Subtask 3: 15 / 15
• Subtask 4: 20 / 20
• Subtask 5: 36 / 36
• Subtask 6: 20 / 20