#include <iostream>
#include <string>
#include <algorithm>
#define int long long
using namespace std;
const int inf = 1e18;
int N, V[2048][2048];
int dp[2048][2048];
pair<int, int> lca(int i, int j)
{
int cc = 0;
while (i != j) {
i >>= 1; j >>= 1; cc++;
}
return make_pair(i, cc);
}
signed main()
{
ios::sync_with_stdio(false); cin.tie(0); cout.tie(0);
int N; cin >> N;
for (int i = 0; i < N; i++) {
for (int j = 0; j < N; j++) {
cin >> V[i][j];
}
}
int cnt = 0;
while ((1 << cnt) != N) cnt++;
fill(&dp[0][0], &dp[2047][2048], inf);
for (int j = 0; j < N; j++) dp[0][j] = 0;
for (int i = 1; i < N; i++) {
pair<int, int> bef = lca(i-1, i);
for (int j = 0; j < N; j++) {
int p = (j >> bef.second - 1) << (bef.second - 1);
p ^= 1 << bef.second - 1;
int q = p + (1 << bef.second - 1) - 1;
for (int k = p; k <= q; k++) {
dp[i][j] = min(dp[i][j], dp[i-1][k] + V[k][j]);
}
}
}
int ans = inf;
for (int i = 0; i < N; i++) ans = min(ans, dp[N-1][i]);
cout << ans << '\n';
return 0;
}
Compilation message
Main.cpp: In function 'int main()':
Main.cpp:34:38: warning: suggest parentheses around '-' inside '>>' [-Wparentheses]
34 | int p = (j >> bef.second - 1) << (bef.second - 1);
| ~~~~~~~~~~~^~~
Main.cpp:35:34: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
35 | p ^= 1 << bef.second - 1;
| ~~~~~~~~~~~^~~
Main.cpp:36:42: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
36 | int q = p + (1 << bef.second - 1) - 1;
| ~~~~~~~~~~~^~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
13 ms |
33108 KB |
Output is correct |
2 |
Correct |
15 ms |
33208 KB |
Output is correct |
3 |
Correct |
14 ms |
33160 KB |
Output is correct |
4 |
Correct |
14 ms |
33108 KB |
Output is correct |
5 |
Correct |
14 ms |
33208 KB |
Output is correct |
6 |
Correct |
14 ms |
33140 KB |
Output is correct |
7 |
Correct |
14 ms |
33200 KB |
Output is correct |
8 |
Correct |
14 ms |
33164 KB |
Output is correct |
9 |
Correct |
14 ms |
33108 KB |
Output is correct |
10 |
Correct |
14 ms |
33172 KB |
Output is correct |
11 |
Correct |
14 ms |
33108 KB |
Output is correct |
12 |
Correct |
13 ms |
33196 KB |
Output is correct |
13 |
Correct |
14 ms |
33132 KB |
Output is correct |
14 |
Correct |
14 ms |
33200 KB |
Output is correct |
15 |
Correct |
14 ms |
33108 KB |
Output is correct |
16 |
Correct |
14 ms |
33108 KB |
Output is correct |
17 |
Correct |
16 ms |
33216 KB |
Output is correct |
18 |
Correct |
13 ms |
33108 KB |
Output is correct |
19 |
Correct |
13 ms |
33108 KB |
Output is correct |
20 |
Correct |
13 ms |
33120 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
13 ms |
33108 KB |
Output is correct |
2 |
Correct |
15 ms |
33208 KB |
Output is correct |
3 |
Correct |
14 ms |
33160 KB |
Output is correct |
4 |
Correct |
14 ms |
33108 KB |
Output is correct |
5 |
Correct |
14 ms |
33208 KB |
Output is correct |
6 |
Correct |
14 ms |
33140 KB |
Output is correct |
7 |
Correct |
14 ms |
33200 KB |
Output is correct |
8 |
Correct |
14 ms |
33164 KB |
Output is correct |
9 |
Correct |
14 ms |
33108 KB |
Output is correct |
10 |
Correct |
14 ms |
33172 KB |
Output is correct |
11 |
Correct |
14 ms |
33108 KB |
Output is correct |
12 |
Correct |
13 ms |
33196 KB |
Output is correct |
13 |
Correct |
14 ms |
33132 KB |
Output is correct |
14 |
Correct |
14 ms |
33200 KB |
Output is correct |
15 |
Correct |
14 ms |
33108 KB |
Output is correct |
16 |
Correct |
14 ms |
33108 KB |
Output is correct |
17 |
Correct |
16 ms |
33216 KB |
Output is correct |
18 |
Correct |
13 ms |
33108 KB |
Output is correct |
19 |
Correct |
13 ms |
33108 KB |
Output is correct |
20 |
Correct |
13 ms |
33120 KB |
Output is correct |
21 |
Correct |
15 ms |
33620 KB |
Output is correct |
22 |
Correct |
15 ms |
33620 KB |
Output is correct |
23 |
Correct |
15 ms |
33620 KB |
Output is correct |
24 |
Correct |
14 ms |
33364 KB |
Output is correct |
25 |
Correct |
14 ms |
33376 KB |
Output is correct |
26 |
Correct |
16 ms |
33568 KB |
Output is correct |
27 |
Correct |
15 ms |
33664 KB |
Output is correct |
28 |
Correct |
15 ms |
33704 KB |
Output is correct |
29 |
Correct |
16 ms |
33676 KB |
Output is correct |
30 |
Correct |
15 ms |
33628 KB |
Output is correct |
31 |
Correct |
16 ms |
33588 KB |
Output is correct |
32 |
Correct |
16 ms |
33616 KB |
Output is correct |
33 |
Correct |
16 ms |
33620 KB |
Output is correct |
34 |
Correct |
19 ms |
33664 KB |
Output is correct |
35 |
Correct |
16 ms |
33560 KB |
Output is correct |
36 |
Correct |
15 ms |
33620 KB |
Output is correct |
37 |
Correct |
15 ms |
33644 KB |
Output is correct |
38 |
Correct |
15 ms |
33608 KB |
Output is correct |
39 |
Correct |
14 ms |
33668 KB |
Output is correct |
40 |
Correct |
15 ms |
33620 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
13 ms |
33108 KB |
Output is correct |
2 |
Correct |
15 ms |
33208 KB |
Output is correct |
3 |
Correct |
14 ms |
33160 KB |
Output is correct |
4 |
Correct |
14 ms |
33108 KB |
Output is correct |
5 |
Correct |
14 ms |
33208 KB |
Output is correct |
6 |
Correct |
14 ms |
33140 KB |
Output is correct |
7 |
Correct |
14 ms |
33200 KB |
Output is correct |
8 |
Correct |
14 ms |
33164 KB |
Output is correct |
9 |
Correct |
14 ms |
33108 KB |
Output is correct |
10 |
Correct |
14 ms |
33172 KB |
Output is correct |
11 |
Correct |
14 ms |
33108 KB |
Output is correct |
12 |
Correct |
13 ms |
33196 KB |
Output is correct |
13 |
Correct |
14 ms |
33132 KB |
Output is correct |
14 |
Correct |
14 ms |
33200 KB |
Output is correct |
15 |
Correct |
14 ms |
33108 KB |
Output is correct |
16 |
Correct |
14 ms |
33108 KB |
Output is correct |
17 |
Correct |
16 ms |
33216 KB |
Output is correct |
18 |
Correct |
13 ms |
33108 KB |
Output is correct |
19 |
Correct |
13 ms |
33108 KB |
Output is correct |
20 |
Correct |
13 ms |
33120 KB |
Output is correct |
21 |
Correct |
15 ms |
33620 KB |
Output is correct |
22 |
Correct |
15 ms |
33620 KB |
Output is correct |
23 |
Correct |
15 ms |
33620 KB |
Output is correct |
24 |
Correct |
14 ms |
33364 KB |
Output is correct |
25 |
Correct |
14 ms |
33376 KB |
Output is correct |
26 |
Correct |
16 ms |
33568 KB |
Output is correct |
27 |
Correct |
15 ms |
33664 KB |
Output is correct |
28 |
Correct |
15 ms |
33704 KB |
Output is correct |
29 |
Correct |
16 ms |
33676 KB |
Output is correct |
30 |
Correct |
15 ms |
33628 KB |
Output is correct |
31 |
Correct |
16 ms |
33588 KB |
Output is correct |
32 |
Correct |
16 ms |
33616 KB |
Output is correct |
33 |
Correct |
16 ms |
33620 KB |
Output is correct |
34 |
Correct |
19 ms |
33664 KB |
Output is correct |
35 |
Correct |
16 ms |
33560 KB |
Output is correct |
36 |
Correct |
15 ms |
33620 KB |
Output is correct |
37 |
Correct |
15 ms |
33644 KB |
Output is correct |
38 |
Correct |
15 ms |
33608 KB |
Output is correct |
39 |
Correct |
14 ms |
33668 KB |
Output is correct |
40 |
Correct |
15 ms |
33620 KB |
Output is correct |
41 |
Correct |
38 ms |
37204 KB |
Output is correct |
42 |
Correct |
44 ms |
37376 KB |
Output is correct |
43 |
Correct |
38 ms |
37224 KB |
Output is correct |
44 |
Correct |
39 ms |
37164 KB |
Output is correct |
45 |
Correct |
39 ms |
37216 KB |
Output is correct |
46 |
Correct |
39 ms |
37192 KB |
Output is correct |
47 |
Correct |
38 ms |
37220 KB |
Output is correct |
48 |
Correct |
39 ms |
37128 KB |
Output is correct |
49 |
Correct |
39 ms |
37196 KB |
Output is correct |
50 |
Correct |
39 ms |
37264 KB |
Output is correct |
51 |
Correct |
39 ms |
37212 KB |
Output is correct |
52 |
Correct |
37 ms |
37176 KB |
Output is correct |
53 |
Correct |
37 ms |
37196 KB |
Output is correct |
54 |
Correct |
38 ms |
37236 KB |
Output is correct |
55 |
Correct |
39 ms |
37232 KB |
Output is correct |
56 |
Correct |
39 ms |
38768 KB |
Output is correct |
57 |
Correct |
39 ms |
39040 KB |
Output is correct |
58 |
Correct |
39 ms |
38976 KB |
Output is correct |
59 |
Correct |
39 ms |
38988 KB |
Output is correct |
60 |
Correct |
38 ms |
38636 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
13 ms |
33108 KB |
Output is correct |
2 |
Correct |
15 ms |
33208 KB |
Output is correct |
3 |
Correct |
14 ms |
33160 KB |
Output is correct |
4 |
Correct |
14 ms |
33108 KB |
Output is correct |
5 |
Correct |
14 ms |
33208 KB |
Output is correct |
6 |
Correct |
14 ms |
33140 KB |
Output is correct |
7 |
Correct |
14 ms |
33200 KB |
Output is correct |
8 |
Correct |
14 ms |
33164 KB |
Output is correct |
9 |
Correct |
14 ms |
33108 KB |
Output is correct |
10 |
Correct |
14 ms |
33172 KB |
Output is correct |
11 |
Correct |
14 ms |
33108 KB |
Output is correct |
12 |
Correct |
13 ms |
33196 KB |
Output is correct |
13 |
Correct |
14 ms |
33132 KB |
Output is correct |
14 |
Correct |
14 ms |
33200 KB |
Output is correct |
15 |
Correct |
14 ms |
33108 KB |
Output is correct |
16 |
Correct |
14 ms |
33108 KB |
Output is correct |
17 |
Correct |
16 ms |
33216 KB |
Output is correct |
18 |
Correct |
13 ms |
33108 KB |
Output is correct |
19 |
Correct |
13 ms |
33108 KB |
Output is correct |
20 |
Correct |
13 ms |
33120 KB |
Output is correct |
21 |
Correct |
15 ms |
33620 KB |
Output is correct |
22 |
Correct |
15 ms |
33620 KB |
Output is correct |
23 |
Correct |
15 ms |
33620 KB |
Output is correct |
24 |
Correct |
14 ms |
33364 KB |
Output is correct |
25 |
Correct |
14 ms |
33376 KB |
Output is correct |
26 |
Correct |
16 ms |
33568 KB |
Output is correct |
27 |
Correct |
15 ms |
33664 KB |
Output is correct |
28 |
Correct |
15 ms |
33704 KB |
Output is correct |
29 |
Correct |
16 ms |
33676 KB |
Output is correct |
30 |
Correct |
15 ms |
33628 KB |
Output is correct |
31 |
Correct |
16 ms |
33588 KB |
Output is correct |
32 |
Correct |
16 ms |
33616 KB |
Output is correct |
33 |
Correct |
16 ms |
33620 KB |
Output is correct |
34 |
Correct |
19 ms |
33664 KB |
Output is correct |
35 |
Correct |
16 ms |
33560 KB |
Output is correct |
36 |
Correct |
15 ms |
33620 KB |
Output is correct |
37 |
Correct |
15 ms |
33644 KB |
Output is correct |
38 |
Correct |
15 ms |
33608 KB |
Output is correct |
39 |
Correct |
14 ms |
33668 KB |
Output is correct |
40 |
Correct |
15 ms |
33620 KB |
Output is correct |
41 |
Correct |
38 ms |
37204 KB |
Output is correct |
42 |
Correct |
44 ms |
37376 KB |
Output is correct |
43 |
Correct |
38 ms |
37224 KB |
Output is correct |
44 |
Correct |
39 ms |
37164 KB |
Output is correct |
45 |
Correct |
39 ms |
37216 KB |
Output is correct |
46 |
Correct |
39 ms |
37192 KB |
Output is correct |
47 |
Correct |
38 ms |
37220 KB |
Output is correct |
48 |
Correct |
39 ms |
37128 KB |
Output is correct |
49 |
Correct |
39 ms |
37196 KB |
Output is correct |
50 |
Correct |
39 ms |
37264 KB |
Output is correct |
51 |
Correct |
39 ms |
37212 KB |
Output is correct |
52 |
Correct |
37 ms |
37176 KB |
Output is correct |
53 |
Correct |
37 ms |
37196 KB |
Output is correct |
54 |
Correct |
38 ms |
37236 KB |
Output is correct |
55 |
Correct |
39 ms |
37232 KB |
Output is correct |
56 |
Correct |
39 ms |
38768 KB |
Output is correct |
57 |
Correct |
39 ms |
39040 KB |
Output is correct |
58 |
Correct |
39 ms |
38976 KB |
Output is correct |
59 |
Correct |
39 ms |
38988 KB |
Output is correct |
60 |
Correct |
38 ms |
38636 KB |
Output is correct |
61 |
Correct |
421 ms |
69752 KB |
Output is correct |
62 |
Correct |
433 ms |
67944 KB |
Output is correct |
63 |
Correct |
431 ms |
70832 KB |
Output is correct |
64 |
Correct |
422 ms |
67912 KB |
Output is correct |
65 |
Correct |
430 ms |
69160 KB |
Output is correct |
66 |
Correct |
427 ms |
69960 KB |
Output is correct |
67 |
Correct |
422 ms |
68428 KB |
Output is correct |
68 |
Correct |
428 ms |
70888 KB |
Output is correct |
69 |
Correct |
431 ms |
65952 KB |
Output is correct |
70 |
Correct |
418 ms |
67428 KB |
Output is correct |
71 |
Correct |
431 ms |
68364 KB |
Output is correct |
72 |
Correct |
419 ms |
69172 KB |
Output is correct |
73 |
Correct |
433 ms |
68972 KB |
Output is correct |
74 |
Correct |
432 ms |
68984 KB |
Output is correct |
75 |
Correct |
426 ms |
69000 KB |
Output is correct |
76 |
Correct |
430 ms |
69076 KB |
Output is correct |
77 |
Correct |
418 ms |
68696 KB |
Output is correct |
78 |
Correct |
432 ms |
68780 KB |
Output is correct |
79 |
Correct |
422 ms |
68828 KB |
Output is correct |
80 |
Correct |
420 ms |
68660 KB |
Output is correct |