oj.uz

답안 #204061

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
204061 2020-02-24T05:09:24 Z ics0503 Lamps (JOI19_lamps) C++17
10 / 100
 202 ms 64912 KB 
#include<stdio.h>

char a[1212121], b[1212121];
int D[1212121][4][4];
int min(int a, int b) { if (a < b)return a; return b; }
bool oper(int type, int type2, int w) {
	if (type == 0)return b[w] == '0';
	if (type == 1)return b[w] == '1';
	if (type == 2 && type2 == 3)return b[w] != a[w];
	if (type == 2 && type2 == 2)return b[w] == a[w];
	if (type == 2 && type2 == 1)return b[w] == '0';
	if (type == 2 && type2 == 0)return b[w] == '1';
	if (type == 3 && type2 == 3)return a[w] == b[w];
	return oper(type2, 3, w);
}
int main() {
	int n, i, j, k, p; scanf("%d%s%s", &n,a+1,b+1);
	for (i = 0; i < 4; i++)for (j = 0; j < 4; j++)D[0][i][j] = 1e9;
	D[0][3][3] = 0;
	for (i = 1; i <= n; i++) {
		for (j = 0; j < 4; j++) {
			for (k = 0; k < 4; k++) {
				D[i][j][k] = 1e9;
				if (oper(j, k, i)) {
					D[i][j][k] = D[i - 1][j][k];
					for (p = 0; p < 4; p++)
						D[i][j][k] = min(D[i][j][k], D[i - 1][p][k] + (j != 3));
					if (k == 3) {
						for (p = 0; p < 4; p++)
							D[i][j][3] = min(D[i][j][3], D[i - 1][p][j] + (p == 3));
					}
					for (p = 0; p < 4; p++)
						D[i][j][k] = min(D[i][j][k], D[i - 1][k][p] + (j != 3));
				}
			}
		}
	}
	int ans = 1e9;
	for (i = 0; i < 4; i++)for (j = 0; j < 4; j++)ans = min(ans, D[n][i][j]);
	printf("%d", ans);

	return 0;
}

Compilation message

lamp.cpp: In function 'int main()':
lamp.cpp:17:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  int n, i, j, k, p; scanf("%d%s%s", &n,a+1,b+1);
                     ~~~~~^~~~~~~~~~~~~~~~~~~~~~

Subtask #1
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 256 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 256 KB Output is correct
5 Correct 5 ms 256 KB Output is correct
6 Correct 5 ms 256 KB Output is correct
7 Correct 5 ms 256 KB Output is correct
8 Correct 4 ms 256 KB Output is correct
9 Correct 5 ms 256 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 256 KB Output is correct
13 Correct 5 ms 256 KB Output is correct
14 Correct 5 ms 256 KB Output is correct
15 Correct 4 ms 256 KB Output is correct
16 Correct 5 ms 256 KB Output is correct
17 Correct 5 ms 256 KB Output is correct
18 Correct 5 ms 256 KB Output is correct
19 Correct 5 ms 256 KB Output is correct
20 Correct 5 ms 256 KB Output is correct
21 Correct 5 ms 376 KB Output is correct
22 Correct 5 ms 256 KB Output is correct
23 Correct 4 ms 256 KB Output is correct
24 Correct 4 ms 256 KB Output is correct
25 Correct 5 ms 256 KB Output is correct
26 Correct 5 ms 256 KB Output is correct
27 Correct 4 ms 256 KB Output is correct
28 Correct 5 ms 256 KB Output is correct
29 Correct 6 ms 428 KB Output is correct
30 Correct 4 ms 256 KB Output is correct
31 Correct 5 ms 256 KB Output is correct
32 Correct 4 ms 256 KB Output is correct
33 Correct 5 ms 256 KB Output is correct
34 Correct 5 ms 300 KB Output is correct

Subtask #2
0 / 41.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 256 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 256 KB Output is correct
5 Correct 5 ms 256 KB Output is correct
6 Correct 5 ms 256 KB Output is correct
7 Correct 5 ms 256 KB Output is correct
8 Correct 4 ms 256 KB Output is correct
9 Correct 5 ms 256 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 256 KB Output is correct
13 Correct 5 ms 256 KB Output is correct
14 Correct 5 ms 256 KB Output is correct
15 Correct 4 ms 256 KB Output is correct
16 Correct 5 ms 256 KB Output is correct
17 Correct 5 ms 256 KB Output is correct
18 Correct 5 ms 256 KB Output is correct
19 Correct 5 ms 256 KB Output is correct
20 Correct 5 ms 256 KB Output is correct
21 Correct 5 ms 376 KB Output is correct
22 Correct 5 ms 256 KB Output is correct
23 Correct 4 ms 256 KB Output is correct
24 Correct 4 ms 256 KB Output is correct
25 Correct 5 ms 256 KB Output is correct
26 Correct 5 ms 256 KB Output is correct
27 Correct 4 ms 256 KB Output is correct
28 Correct 5 ms 256 KB Output is correct
29 Correct 6 ms 428 KB Output is correct
30 Correct 4 ms 256 KB Output is correct
31 Correct 5 ms 256 KB Output is correct
32 Correct 4 ms 256 KB Output is correct
33 Correct 5 ms 256 KB Output is correct
34 Correct 5 ms 300 KB Output is correct
35 Correct 5 ms 376 KB Output is correct
36 Correct 5 ms 376 KB Output is correct
37 Correct 5 ms 376 KB Output is correct
38 Correct 6 ms 376 KB Output is correct
39 Correct 5 ms 380 KB Output is correct
40 Incorrect 5 ms 376 KB Output isn't correct
41 Halted 0 ms 0 KB -

Subtask #3
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 4 ms 256 KB Output is correct
4 Correct 5 ms 256 KB Output is correct
5 Correct 5 ms 256 KB Output is correct
6 Correct 4 ms 256 KB Output is correct
7 Correct 190 ms 64912 KB Output is correct
8 Correct 194 ms 64888 KB Output is correct
9 Correct 192 ms 64888 KB Output is correct
10 Correct 197 ms 64888 KB Output is correct
11 Correct 196 ms 64888 KB Output is correct
12 Correct 187 ms 64888 KB Output is correct
13 Correct 192 ms 64888 KB Output is correct
14 Correct 202 ms 64888 KB Output is correct

Subtask #4
0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 256 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 256 KB Output is correct
5 Correct 5 ms 256 KB Output is correct
6 Correct 5 ms 256 KB Output is correct
7 Correct 5 ms 256 KB Output is correct
8 Correct 4 ms 256 KB Output is correct
9 Correct 5 ms 256 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 256 KB Output is correct
13 Correct 5 ms 256 KB Output is correct
14 Correct 5 ms 256 KB Output is correct
15 Correct 4 ms 256 KB Output is correct
16 Correct 5 ms 256 KB Output is correct
17 Correct 5 ms 256 KB Output is correct
18 Correct 5 ms 256 KB Output is correct
19 Correct 5 ms 256 KB Output is correct
20 Correct 5 ms 256 KB Output is correct
21 Correct 5 ms 376 KB Output is correct
22 Correct 5 ms 256 KB Output is correct
23 Correct 4 ms 256 KB Output is correct
24 Correct 4 ms 256 KB Output is correct
25 Correct 5 ms 256 KB Output is correct
26 Correct 5 ms 256 KB Output is correct
27 Correct 4 ms 256 KB Output is correct
28 Correct 5 ms 256 KB Output is correct
29 Correct 6 ms 428 KB Output is correct
30 Correct 4 ms 256 KB Output is correct
31 Correct 5 ms 256 KB Output is correct
32 Correct 4 ms 256 KB Output is correct
33 Correct 5 ms 256 KB Output is correct
34 Correct 5 ms 300 KB Output is correct
35 Correct 5 ms 376 KB Output is correct
36 Correct 5 ms 376 KB Output is correct
37 Correct 5 ms 376 KB Output is correct
38 Correct 6 ms 376 KB Output is correct
39 Correct 5 ms 380 KB Output is correct
40 Incorrect 5 ms 376 KB Output isn't correct
41 Halted 0 ms 0 KB -