제출 #28590

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
28590		탕탕탕! 핑거팁 니 맘을 겨눌게~ (#68)	포도주 시음 (FXCUP2_wine)	C11	0 / 1	0 ms	3460 KiB

wine

#include <stdio.h>

int wine[300000], flag[300000];

int main() {
	int N, K, i, j, min, max, pre_min, min_index, max_index;
	long long int flavor = 0;
	scanf("%d %d", &N, &K);
	for (i = 0; i < N; i++)
		scanf("%d", &wine[i]);
	i = 0;
	while (i < K) {
		min = 1000000001, max = -1;
		for (j = 0; j < N; j++) {
			if (max < wine[j] && flag[j] == 0) { max = wine[j]; max_index = j; }
			if (min > wine[j] && flag[j] == 0) { min = wine[j]; min_index = j; }
		}
		flag[max_index] = 1, flag[min_index] = 1;
		if (i == 0) {
			flavor = max;
			pre_min = min;
			i++;
			continue;
		}
		else flavor += (max - pre_min);
		pre_min = min;
		i = i + 2;
	}
	printf("%lld", flavor);
}

컴파일 시 표준 에러 (stderr) 메시지

wine.c: In function 'main':
wine.c:8:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d", &N, &K);
  ^
wine.c:10:3: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &wine[i]);
   ^
wine.c:18:19: warning: 'max_index' may be used uninitialized in this function [-Wmaybe-uninitialized]
   flag[max_index] = 1, flag[min_index] = 1;
                   ^
wine.c:18:40: warning: 'min_index' may be used uninitialized in this function [-Wmaybe-uninitialized]
   flag[max_index] = 1, flag[min_index] = 1;
                                        ^

• Subtask 1: 0 / 1