제출 #476120

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
476120		rainboy	Clickbait (COCI18_clickbait)	C11	120 / 120	5 ms	2212 KiB

clickbait

#include <stdio.h>

#define N	1000
#define M	1000

char cc[N][M + 1]; int n, m;

void dfs(int i, int j, int dir) {
	if (dir == -2) {
		int i_, j1, j2, a, b;

		j1 = j;
		while (j1 > 0 && cc[i][j1 - 1] != '.')
			j1--;
		j2 = j;
		while (j2 + 1 < m && cc[i][j2 + 1] != '.')
			j2++;
		i_ = i + 1;
		while (i_ + 1 < n && cc[i_ + 1][j1] != '.')
			i_++;
		for (a = i_ - 1; a >= i + 1; a--) {
			if (j1 > 0 && cc[a][j1 - 1] != '.')
				dfs(a, j1 - 1, -1);
			if (j2 + 1 < m && cc[a][j2 + 1] != '.')
				dfs(a, j2 + 1, 1);
		}
		for (a = i + 1; a <= i_ - 1; a++)
			for (b = j1 + 1; b <= j2 - 1; b++)
				if (cc[a][b] != '.')
					printf("%c", cc[a][b]);
		printf("\n");
	} else {
		if (cc[i][j] == '-')
			dfs(i, j + dir, dir ? dir : -2);
		else if (cc[i][j] == '|' || dir)
			dfs(i + 1, j, 0);
		else {
			dir = j > 0 && cc[i][j - 1] == '-' ? -1 : 1;
			dfs(i, j + dir, dir);
		}
	}
}

int main() {
	int i, j;

	scanf("%d%d", &n, &m);
	for (i = 0; i < n; i++)
		scanf("%s", cc[i]);
	for (i = 0; i < n; i++)
		for (j = 0; j < m; j++)
			if (cc[i][j] != '.') {
				dfs(i, j, -2);
				return 0;
			}
	return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

clickbait.c: In function 'main':
clickbait.c:47:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   47 |  scanf("%d%d", &n, &m);
      |  ^~~~~~~~~~~~~~~~~~~~~
clickbait.c:49:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   49 |   scanf("%s", cc[i]);
      |   ^~~~~~~~~~~~~~~~~~

• Subtask 1: 120 / 120