oj.uz

Submission #810606

# Submission time Handle Problem Language Result Execution time Memory
810606 2023-08-06T12:10:02 Z rainboy Netrpeljivost (COI23_netrpeljivost) C
100 / 100
 861 ms 95400 KB 
#include <stdio.h>
#include <string.h>

#define N	2048
#define INF	0x3f3f3f3f3f3f3f3fLL

long long min(long long a, long long b) { return a < b ? a : b; }

int main() {
	static int ww[N][N];
	static long long dp[N][N], dq[N][N], xx[N];
	int n, h, i, j, k, l, m, r, lm, mr;
	long long ans;

	scanf("%d", &n);
	for (i = 0; i < n; i++)
		for (j = 0; j < n; j++)
			scanf("%d", &ww[i][j]);
	if (n == 1) {
		printf("0\n");
		return 0;
	}
	if (n == 2) {
		printf("%d\n", ww[0][1]);
		return 0;
	}
	for (h = 0; 1 << h < n / 2; h++)
		if (h == 0)
			for (i = 0; i < n; i += 2) {
				j = i + 1;
				dp[i][j] = ww[i][j];
			}
		else
			for (l = 0; l < n; l = r) {
				r = l + (1 << h + 1), m = l + (1 << h), lm = l + (1 << h - 1), mr = m + (1 << h - 1);
				for (i = l; i < m; i++)
					memset(dq[i] + m, 0x3f, (r - m) * sizeof *dq[i]);
				for (i = l; i < lm; i++)
					for (j = lm; j < m; j++)
						for (k = m; k < r; k++) {
							dq[i][k] = min(dq[i][k], dp[i][j] + ww[j][k]);
							dq[j][k] = min(dq[j][k], dp[i][j] + ww[i][k]);
						}
				for (i = l; i < m; i++)
					memset(dp[i] + m, 0x3f, (r - m) * sizeof *dp[i]);
				for (i = l; i < m; i++)
					for (j = m; j < mr; j++)
						for (k = mr; k < r; k++) {
							dp[i][k] = min(dp[i][k], dq[i][j] + dp[j][k]);
							dp[i][j] = min(dp[i][j], dq[i][k] + dp[j][k]);
						}
			}
	l = 0, r = l + (1 << h + 1), m = l + (1 << h), lm = l + (1 << h - 1), mr = m + (1 << h - 1);
	memset(xx + l, 0x3f, (r - l) * sizeof *xx);
	for (i = l; i < lm; i++)
		for (j = lm; j < m; j++) {
			xx[i] = min(xx[i], dp[i][j]);
			xx[j] = min(xx[j], dp[i][j]);
		}
	for (i = m; i < mr; i++)
		for (j = mr; j < r; j++) {
			xx[i] = min(xx[i], dp[i][j]);
			xx[j] = min(xx[j], dp[i][j]);
		}
	ans = INF;
	for (i = l; i < m; i++)
		for (j = m; j < r; j++)
			ans = min(ans, xx[i] + ww[i][j] + xx[j]);
	printf("%lld\n", ans);
	return 0;
}

Compilation message

Main.c: In function 'main':
Main.c:35:21: warning: suggest parentheses around '+' inside '<<' [-Wparentheses]
   35 |     r = l + (1 << h + 1), m = l + (1 << h), lm = l + (1 << h - 1), mr = m + (1 << h - 1);
      |                   ~~^~~
Main.c:35:62: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   35 |     r = l + (1 << h + 1), m = l + (1 << h), lm = l + (1 << h - 1), mr = m + (1 << h - 1);
      |                                                            ~~^~~
Main.c:35:85: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   35 |     r = l + (1 << h + 1), m = l + (1 << h), lm = l + (1 << h - 1), mr = m + (1 << h - 1);
      |                                                                                   ~~^~~
Main.c:53:25: warning: suggest parentheses around '+' inside '<<' [-Wparentheses]
   53 |  l = 0, r = l + (1 << h + 1), m = l + (1 << h), lm = l + (1 << h - 1), mr = m + (1 << h - 1);
      |                       ~~^~~
Main.c:53:66: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   53 |  l = 0, r = l + (1 << h + 1), m = l + (1 << h), lm = l + (1 << h - 1), mr = m + (1 << h - 1);
      |                                                                ~~^~~
Main.c:53:89: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   53 |  l = 0, r = l + (1 << h + 1), m = l + (1 << h), lm = l + (1 << h - 1), mr = m + (1 << h - 1);
      |                                                                                       ~~^~~
Main.c:15:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |  scanf("%d", &n);
      |  ^~~~~~~~~~~~~~~
Main.c:18:4: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   18 |    scanf("%d", &ww[i][j]);
      |    ^~~~~~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 0 ms 420 KB Output is correct
3 Correct 1 ms 424 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 420 KB Output is correct
7 Correct 1 ms 420 KB Output is correct
8 Correct 0 ms 468 KB Output is correct
9 Correct 0 ms 468 KB Output is correct
10 Correct 0 ms 468 KB Output is correct
11 Correct 0 ms 464 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 352 KB Output is correct
14 Correct 1 ms 468 KB Output is correct
15 Correct 1 ms 468 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 420 KB Output is correct
20 Correct 0 ms 468 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 0 ms 420 KB Output is correct
3 Correct 1 ms 424 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 420 KB Output is correct
7 Correct 1 ms 420 KB Output is correct
8 Correct 0 ms 468 KB Output is correct
9 Correct 0 ms 468 KB Output is correct
10 Correct 0 ms 468 KB Output is correct
11 Correct 0 ms 464 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 352 KB Output is correct
14 Correct 1 ms 468 KB Output is correct
15 Correct 1 ms 468 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 420 KB Output is correct
20 Correct 0 ms 468 KB Output is correct
21 Correct 5 ms 1780 KB Output is correct
22 Correct 5 ms 1812 KB Output is correct
23 Correct 4 ms 1804 KB Output is correct
24 Correct 2 ms 980 KB Output is correct
25 Correct 2 ms 996 KB Output is correct
26 Correct 4 ms 1876 KB Output is correct
27 Correct 5 ms 1852 KB Output is correct
28 Correct 4 ms 1880 KB Output is correct
29 Correct 3 ms 1876 KB Output is correct
30 Correct 6 ms 1808 KB Output is correct
31 Correct 5 ms 1920 KB Output is correct
32 Correct 4 ms 1856 KB Output is correct
33 Correct 4 ms 1876 KB Output is correct
34 Correct 4 ms 1876 KB Output is correct
35 Correct 5 ms 1840 KB Output is correct
36 Correct 5 ms 1844 KB Output is correct
37 Correct 3 ms 1876 KB Output is correct
38 Correct 8 ms 1748 KB Output is correct
39 Correct 5 ms 1832 KB Output is correct
40 Correct 5 ms 1876 KB Output is correct

Subtask #3
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 0 ms 420 KB Output is correct
3 Correct 1 ms 424 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 420 KB Output is correct
7 Correct 1 ms 420 KB Output is correct
8 Correct 0 ms 468 KB Output is correct
9 Correct 0 ms 468 KB Output is correct
10 Correct 0 ms 468 KB Output is correct
11 Correct 0 ms 464 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 352 KB Output is correct
14 Correct 1 ms 468 KB Output is correct
15 Correct 1 ms 468 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 420 KB Output is correct
20 Correct 0 ms 468 KB Output is correct
21 Correct 5 ms 1780 KB Output is correct
22 Correct 5 ms 1812 KB Output is correct
23 Correct 4 ms 1804 KB Output is correct
24 Correct 2 ms 980 KB Output is correct
25 Correct 2 ms 996 KB Output is correct
26 Correct 4 ms 1876 KB Output is correct
27 Correct 5 ms 1852 KB Output is correct
28 Correct 4 ms 1880 KB Output is correct
29 Correct 3 ms 1876 KB Output is correct
30 Correct 6 ms 1808 KB Output is correct
31 Correct 5 ms 1920 KB Output is correct
32 Correct 4 ms 1856 KB Output is correct
33 Correct 4 ms 1876 KB Output is correct
34 Correct 4 ms 1876 KB Output is correct
35 Correct 5 ms 1840 KB Output is correct
36 Correct 5 ms 1844 KB Output is correct
37 Correct 3 ms 1876 KB Output is correct
38 Correct 8 ms 1748 KB Output is correct
39 Correct 5 ms 1832 KB Output is correct
40 Correct 5 ms 1876 KB Output is correct
41 Correct 48 ms 9084 KB Output is correct
42 Correct 51 ms 9620 KB Output is correct
43 Correct 48 ms 9132 KB Output is correct
44 Correct 97 ms 7940 KB Output is correct
45 Correct 67 ms 8408 KB Output is correct
46 Correct 40 ms 9708 KB Output is correct
47 Correct 85 ms 8168 KB Output is correct
48 Correct 48 ms 9768 KB Output is correct
49 Correct 61 ms 8584 KB Output is correct
50 Correct 87 ms 7744 KB Output is correct
51 Correct 77 ms 7804 KB Output is correct
52 Correct 73 ms 7752 KB Output is correct
53 Correct 62 ms 7756 KB Output is correct
54 Correct 81 ms 7804 KB Output is correct
55 Correct 108 ms 7788 KB Output is correct
56 Correct 56 ms 10008 KB Output is correct
57 Correct 39 ms 10232 KB Output is correct
58 Correct 37 ms 10188 KB Output is correct
59 Correct 30 ms 10264 KB Output is correct
60 Correct 35 ms 10168 KB Output is correct

Subtask #4
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 0 ms 420 KB Output is correct
3 Correct 1 ms 424 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 420 KB Output is correct
7 Correct 1 ms 420 KB Output is correct
8 Correct 0 ms 468 KB Output is correct
9 Correct 0 ms 468 KB Output is correct
10 Correct 0 ms 468 KB Output is correct
11 Correct 0 ms 464 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 352 KB Output is correct
14 Correct 1 ms 468 KB Output is correct
15 Correct 1 ms 468 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 420 KB Output is correct
20 Correct 0 ms 468 KB Output is correct
21 Correct 5 ms 1780 KB Output is correct
22 Correct 5 ms 1812 KB Output is correct
23 Correct 4 ms 1804 KB Output is correct
24 Correct 2 ms 980 KB Output is correct
25 Correct 2 ms 996 KB Output is correct
26 Correct 4 ms 1876 KB Output is correct
27 Correct 5 ms 1852 KB Output is correct
28 Correct 4 ms 1880 KB Output is correct
29 Correct 3 ms 1876 KB Output is correct
30 Correct 6 ms 1808 KB Output is correct
31 Correct 5 ms 1920 KB Output is correct
32 Correct 4 ms 1856 KB Output is correct
33 Correct 4 ms 1876 KB Output is correct
34 Correct 4 ms 1876 KB Output is correct
35 Correct 5 ms 1840 KB Output is correct
36 Correct 5 ms 1844 KB Output is correct
37 Correct 3 ms 1876 KB Output is correct
38 Correct 8 ms 1748 KB Output is correct
39 Correct 5 ms 1832 KB Output is correct
40 Correct 5 ms 1876 KB Output is correct
41 Correct 48 ms 9084 KB Output is correct
42 Correct 51 ms 9620 KB Output is correct
43 Correct 48 ms 9132 KB Output is correct
44 Correct 97 ms 7940 KB Output is correct
45 Correct 67 ms 8408 KB Output is correct
46 Correct 40 ms 9708 KB Output is correct
47 Correct 85 ms 8168 KB Output is correct
48 Correct 48 ms 9768 KB Output is correct
49 Correct 61 ms 8584 KB Output is correct
50 Correct 87 ms 7744 KB Output is correct
51 Correct 77 ms 7804 KB Output is correct
52 Correct 73 ms 7752 KB Output is correct
53 Correct 62 ms 7756 KB Output is correct
54 Correct 81 ms 7804 KB Output is correct
55 Correct 108 ms 7788 KB Output is correct
56 Correct 56 ms 10008 KB Output is correct
57 Correct 39 ms 10232 KB Output is correct
58 Correct 37 ms 10188 KB Output is correct
59 Correct 30 ms 10264 KB Output is correct
60 Correct 35 ms 10168 KB Output is correct
61 Correct 776 ms 94976 KB Output is correct
62 Correct 741 ms 95400 KB Output is correct
63 Correct 717 ms 95400 KB Output is correct
64 Correct 755 ms 95324 KB Output is correct
65 Correct 780 ms 93436 KB Output is correct
66 Correct 727 ms 92236 KB Output is correct
67 Correct 724 ms 95180 KB Output is correct
68 Correct 754 ms 95216 KB Output is correct
69 Correct 757 ms 95384 KB Output is correct
70 Correct 751 ms 95192 KB Output is correct
71 Correct 781 ms 95064 KB Output is correct
72 Correct 756 ms 93464 KB Output is correct
73 Correct 803 ms 92416 KB Output is correct
74 Correct 793 ms 93912 KB Output is correct
75 Correct 742 ms 95140 KB Output is correct
76 Correct 794 ms 94760 KB Output is correct
77 Correct 861 ms 91220 KB Output is correct
78 Correct 836 ms 93112 KB Output is correct
79 Correct 826 ms 92732 KB Output is correct
80 Correct 806 ms 92024 KB Output is correct