Submission #1014865

#TimeUTC-0UsernameProblemLanguageResultExecution timeMemory
10148652024-07-05 16:11:16rainboyFlooding Wall (BOI24_wall)C11
100 / 100
547 ms36160 KiB
#include <stdio.h>
#define N 500000
#define N_ (1 << 19) /* N_ = pow2(ceil(log2(N))) */
#define MD 1000000007
unsigned int Z = 12345;
int rand_() {
return (Z *= 3) >> 1;
}
int pp2[N + 1];
void init() {
int i;
pp2[0] = 1;
for (i = 1; i <= N; i++)
pp2[i] = pp2[i - 1] * 2 % MD;
}
int yy[N * 2];
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 (yy[ii[j]] == yy[i_])
 
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Compilation message (stderr)

Main.c: In function 'main':
Main.c:81:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   81 |  scanf("%d", &n);
      |  ^~~~~~~~~~~~~~~
Main.c:83:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   83 |   scanf("%d", &yy[i << 1 | 0]);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
Main.c:85:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   85 |   scanf("%d", &yy[i << 1 | 1]);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
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