답안 #471550

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
471550 2021-09-09T17:45:28 Z rainboy Retro (COCI17_retro) C
100 / 100
269 ms 4152 KB
#include <stdio.h>
#include <string.h>
 
#define N	300
#define M	300
 
int compare(long long *aa, long long *bb) {
	int i;
 
	for (i = 4; i >= 0; i--)
		if (aa[i] != bb[i])
			return aa[i] < bb[i] ? -1 : 1;
	return 0;
}
 
int main() {
	static char s[M + 1]; 
	static int dp[M][N / 2 + 1], dq[M][N / 2 + 1];
	static long long sp[M][N / 2 + 1][5], sq[M][N / 2 + 1][5];
	int n, m, i, j, d, d_;
 
	scanf("%d%d", &n, &m);
	for (j = 0; j < m; j++)
		for (d = 0; d <= n / 2; d++)
			dp[j][d] = d == 0 ? 0 : -1;
	for (i = 0; i < n; i++) {
		scanf("%s", s);
		for (j = 0; j < m; j++)
			for (d = 0; d <= n / 2; d++) {
				if (s[j] == '*')
					dq[j][d] = d == 0 ? 0 : -1;
				else {
					d_ = s[j] == '.' || s[j] == 'M' ? d : (s[j] == '(' ? d + 1 : d - 1);
					dq[j][d] = -1;
					if (d_ >= 0 && d_ <= n / 2) {
						if (dq[j][d] < dp[j][d_] || dq[j][d] == dp[j][d_] && compare(sq[j][d], sp[j][d_]) > 0)
							dq[j][d] = dp[j][d_], memcpy(sq[j][d], sp[j][d_], sizeof sp[j][d_]);
						if (j > 0 && (dq[j][d] < dp[j - 1][d_] || dq[j][d] == dp[j - 1][d_] && compare(sq[j][d], sp[j - 1][d_]) > 0))
							dq[j][d] = dp[j - 1][d_], memcpy(sq[j][d], sp[j - 1][d_], sizeof sp[j - 1][d_]);
						if (j + 1 < m && (dq[j][d] < dp[j + 1][d_] || dq[j][d] == dp[j + 1][d_] && compare(sq[j][d], sp[j + 1][d_]) > 0))
							dq[j][d] = dp[j + 1][d_], memcpy(sq[j][d], sp[j + 1][d_], sizeof sp[j + 1][d_]);
					}
					if (dq[j][d] != -1 && (s[j] == '(' || s[j] == ')')) {
						if (s[j] == ')')
							sq[j][d][dq[j][d] / 60] |= 1LL << dq[j][d] % 60;
						dq[j][d]++;
					}
				}
			}
		for (j = 0; j < m; j++)
			for (d = 0; d <= n / 2; d++) {
				dp[j][d] = dq[j][d];
				if (dq[j][d] != -1)
					memcpy(sp[j][d], sq[j][d], sizeof sq[j][d]);
			}
	}
	for (j = 0; j < m; j++)
		if (s[j] == 'M') {
			int l = dp[j][0];
 
			printf("%d\n", l);
			while (l--)
				printf("%c", (sp[j][0][l / 60] & 1LL << l % 60) == 0 ? '(' : ')');
			printf("\n");
			return 0;
		}
	return 0;
}

Compilation message

retro.c: In function 'main':
retro.c:36:57: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   36 |       if (dq[j][d] < dp[j][d_] || dq[j][d] == dp[j][d_] && compare(sq[j][d], sp[j][d_]) > 0)
      |                                   ~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
retro.c:38:75: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   38 |       if (j > 0 && (dq[j][d] < dp[j - 1][d_] || dq[j][d] == dp[j - 1][d_] && compare(sq[j][d], sp[j - 1][d_]) > 0))
      |                                                 ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
retro.c:40:79: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   40 |       if (j + 1 < m && (dq[j][d] < dp[j + 1][d_] || dq[j][d] == dp[j + 1][d_] && compare(sq[j][d], sp[j + 1][d_]) > 0))
      |                                                     ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
retro.c:22:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   22 |  scanf("%d%d", &n, &m);
      |  ^~~~~~~~~~~~~~~~~~~~~
retro.c:27:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   27 |   scanf("%s", s);
      |   ^~~~~~~~~~~~~~
# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 1 ms 460 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 460 KB Output is correct
5 Correct 1 ms 1228 KB Output is correct
6 Correct 4 ms 972 KB Output is correct
7 Correct 7 ms 1356 KB Output is correct
8 Correct 4 ms 656 KB Output is correct
9 Correct 12 ms 1096 KB Output is correct
10 Correct 12 ms 1484 KB Output is correct
11 Correct 237 ms 4088 KB Output is correct
12 Correct 218 ms 4088 KB Output is correct
13 Correct 106 ms 1780 KB Output is correct
14 Correct 117 ms 1788 KB Output is correct
15 Correct 264 ms 4144 KB Output is correct
16 Correct 269 ms 4036 KB Output is correct
17 Correct 235 ms 3532 KB Output is correct
18 Correct 208 ms 3524 KB Output is correct
19 Correct 268 ms 4120 KB Output is correct
20 Correct 240 ms 4152 KB Output is correct