Submission #944562

#TimeUTC-0UsernameProblemLanguageResultExecution timeMemory
9445622024-03-13 00:16:33rainboy전봇대 (KOI13_pole)C11
0 / 100
12 ms2392 KiB
#include <stdio.h>
#define N 100000
long long abs_(long long a) { return a > 0 ? a : -a; }
long long min(long long a, long long b) { return a < b ? a : b; }
unsigned int X = 12345;
int rand_() {
return (X *= 3) >> 1;
}
int tt[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 (tt[ii[j]] == tt[i_])
j++;
else if (tt[ii[j]] < tt[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;
}
sort(ii, l, i);
 
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Compilation message (stderr)

pole.c: In function 'main':
pole.c:40:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   40 |  scanf("%d", &n);
      |  ^~~~~~~~~~~~~~~
pole.c:42:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   42 |   scanf("%d", &xx[i]);
      |   ^~~~~~~~~~~~~~~~~~~
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