Submission #930926

#	Time	Username	Problem	Language	Result	Execution time	Memory
930926		rainboy	카드 역배치 (KOI15_reversal)	C11	25 / 25	0 ms	420 KiB

reversal

#include <stdio.h>

#define N	20
#define Q	10

int main() {
	static int aa[N];
	int h, i, l, r, tmp;

	for (i = 0; i < N; i++)
		aa[i] = i + 1;
	for (h = 0; h < Q; h++) {
		scanf("%d%d", &l, &r), l--, r--;
		while (l < r) {
			tmp = aa[l], aa[l] = aa[r], aa[r] = tmp;
			l++, r--;
		}
	}
	for (i = 0; i < N; i++)
		printf("%d ", aa[i]);
	printf("\n");
	return 0;
}

Compilation message (stderr)

reversal.c: In function 'main':
reversal.c:13:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 |   scanf("%d%d", &l, &r), l--, r--;
      |   ^~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 25 / 25