Submission #872820

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
872820	2023-11-13 21:17:57	rainboy	Feast (NOI19_feast)	C11	100 / 100	58 ms	40532 KiB

feast

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#include <stdio.h>
#define N 300000
#define H_  19  /* H_ = ceil(log2(N + 1)) */
#define N_  (1 << H_)
#define INF 0x3f3f3f3f3f3f3f3fLL
long long min(long long a, long long b) { return a < b ? a : b; }
long long max(long long a, long long b) { return a > b ? a : b; }
unsigned int X = 12345;
int rand_() {
  return (X *= 3) >> 1;
}
long long ppmn[N_ * 2], ppmx[N_ * 2], ssmn[N_ * 2], ssmx[N_ * 2]; int n_;
void pul(int i) {
  int l = i << 1, r = l | 1;
  ppmn[i] = min(ppmn[l], ppmn[r]);
  ppmx[i] = max(ppmx[l], ppmx[r]);
  ssmn[i] = min(ssmn[l], ssmn[r]);
  if (ppmx[l] != -INF && ppmn[r] != INF)
    ssmn[i] = min(ssmn[i], ppmn[r] - ppmx[l]);
  ssmx[i] = max(ssmx[l], ssmx[r]);
  if (ppmn[l] != INF && ppmx[r] != -INF)
    ssmx[i] = max(ssmx[i], ppmx[r] - ppmn[l]);
}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

feast.c: In function 'main':
feast.c:181:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  181 |  scanf("%d%d", &n, &k);
      |  ^~~~~~~~~~~~~~~~~~~~~
feast.c:183:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  183 |   scanf("%lld", &aa[i]), aa[i] += aa[i - 1];
      |   ^~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 4 / 4
• Subtask 2: 8 / 8
• Subtask 3: 18 / 18
• Subtask 4: 10 / 10
• Subtask 5: 11 / 11
• Subtask 6: 20 / 20
• Subtask 7: 29 / 29