# | Submission time | Handle | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
248904 | 2020-07-13T17:23:42 Z | patrikpavic2 | Beads and wires (APIO14_beads) | C++17 | 1000 ms | 8616 KB |
#include <cstdio> #include <cstring> #include <vector> #include <algorithm> #include <unordered_map> #define X first #define Y second #define PB push_back using namespace std; typedef pair < int, int > pii; typedef long long ll; const int N = 2e5 + 500; const int INF = 1e9; vector < pii > v[N]; unordered_map < ll, int > dp[3]; int n; int f(int x, int fl, int lst){ if(dp[fl][x * N + lst] != 0) return dp[fl][x * N + lst] - 69420; int sm = 0, dod = -INF; for(pii nxt : v[x]){ if(nxt.X == lst) continue; int opt = max(f(nxt.X, 0, x), f(nxt.X, 1, x) + nxt.Y); sm += opt; dod = max(dod, f(nxt.X, 2, x) + nxt.Y - opt); } dp[fl][x * N + lst] = sm + dod * (fl == 1) + 69420; return sm + dod * (fl == 1); } int main(){ scanf("%d", &n); for(int i = 1;i < n;i++){ int x, y, z; scanf("%d%d%d", &x, &y, &z); v[x].PB({y, z}), v[y].PB({x, z}); } int sol = 0; for(int i = 1;i <= n;i++) sol = max(sol, f(i, 0, i)); printf("%d\n", sol); return 0; }
Compilation message
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 3 ms | 4992 KB | Output is correct |
2 | Correct | 3 ms | 4992 KB | Output is correct |
3 | Correct | 3 ms | 4992 KB | Output is correct |
4 | Correct | 3 ms | 4992 KB | Output is correct |
5 | Correct | 3 ms | 4992 KB | Output is correct |
6 | Correct | 3 ms | 4992 KB | Output is correct |
7 | Correct | 3 ms | 4992 KB | Output is correct |
8 | Correct | 3 ms | 4992 KB | Output is correct |
9 | Correct | 3 ms | 4992 KB | Output is correct |
10 | Correct | 3 ms | 4992 KB | Output is correct |
11 | Correct | 3 ms | 4992 KB | Output is correct |
12 | Correct | 4 ms | 4992 KB | Output is correct |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 3 ms | 4992 KB | Output is correct |
2 | Correct | 3 ms | 4992 KB | Output is correct |
3 | Correct | 3 ms | 4992 KB | Output is correct |
4 | Correct | 3 ms | 4992 KB | Output is correct |
5 | Correct | 3 ms | 4992 KB | Output is correct |
6 | Correct | 3 ms | 4992 KB | Output is correct |
7 | Correct | 3 ms | 4992 KB | Output is correct |
8 | Correct | 3 ms | 4992 KB | Output is correct |
9 | Correct | 3 ms | 4992 KB | Output is correct |
10 | Correct | 3 ms | 4992 KB | Output is correct |
11 | Correct | 3 ms | 4992 KB | Output is correct |
12 | Correct | 4 ms | 4992 KB | Output is correct |
13 | Correct | 3 ms | 5104 KB | Output is correct |
14 | Correct | 3 ms | 4992 KB | Output is correct |
15 | Correct | 4 ms | 4992 KB | Output is correct |
16 | Correct | 4 ms | 5120 KB | Output is correct |
17 | Correct | 4 ms | 5120 KB | Output is correct |
18 | Correct | 4 ms | 5120 KB | Output is correct |
19 | Correct | 11 ms | 5120 KB | Output is correct |
20 | Correct | 6 ms | 5120 KB | Output is correct |
21 | Correct | 7 ms | 5120 KB | Output is correct |
22 | Correct | 5 ms | 5120 KB | Output is correct |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 3 ms | 4992 KB | Output is correct |
2 | Correct | 3 ms | 4992 KB | Output is correct |
3 | Correct | 3 ms | 4992 KB | Output is correct |
4 | Correct | 3 ms | 4992 KB | Output is correct |
5 | Correct | 3 ms | 4992 KB | Output is correct |
6 | Correct | 3 ms | 4992 KB | Output is correct |
7 | Correct | 3 ms | 4992 KB | Output is correct |
8 | Correct | 3 ms | 4992 KB | Output is correct |
9 | Correct | 3 ms | 4992 KB | Output is correct |
10 | Correct | 3 ms | 4992 KB | Output is correct |
11 | Correct | 3 ms | 4992 KB | Output is correct |
12 | Correct | 4 ms | 4992 KB | Output is correct |
13 | Correct | 3 ms | 5104 KB | Output is correct |
14 | Correct | 3 ms | 4992 KB | Output is correct |
15 | Correct | 4 ms | 4992 KB | Output is correct |
16 | Correct | 4 ms | 5120 KB | Output is correct |
17 | Correct | 4 ms | 5120 KB | Output is correct |
18 | Correct | 4 ms | 5120 KB | Output is correct |
19 | Correct | 11 ms | 5120 KB | Output is correct |
20 | Correct | 6 ms | 5120 KB | Output is correct |
21 | Correct | 7 ms | 5120 KB | Output is correct |
22 | Correct | 5 ms | 5120 KB | Output is correct |
23 | Correct | 19 ms | 6784 KB | Output is correct |
24 | Correct | 22 ms | 6784 KB | Output is correct |
25 | Correct | 27 ms | 6776 KB | Output is correct |
26 | Correct | 33 ms | 8616 KB | Output is correct |
27 | Correct | 38 ms | 8616 KB | Output is correct |
28 | Execution timed out | 1092 ms | 7032 KB | Time limit exceeded |
29 | Halted | 0 ms | 0 KB | - |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 3 ms | 4992 KB | Output is correct |
2 | Correct | 3 ms | 4992 KB | Output is correct |
3 | Correct | 3 ms | 4992 KB | Output is correct |
4 | Correct | 3 ms | 4992 KB | Output is correct |
5 | Correct | 3 ms | 4992 KB | Output is correct |
6 | Correct | 3 ms | 4992 KB | Output is correct |
7 | Correct | 3 ms | 4992 KB | Output is correct |
8 | Correct | 3 ms | 4992 KB | Output is correct |
9 | Correct | 3 ms | 4992 KB | Output is correct |
10 | Correct | 3 ms | 4992 KB | Output is correct |
11 | Correct | 3 ms | 4992 KB | Output is correct |
12 | Correct | 4 ms | 4992 KB | Output is correct |
13 | Correct | 3 ms | 5104 KB | Output is correct |
14 | Correct | 3 ms | 4992 KB | Output is correct |
15 | Correct | 4 ms | 4992 KB | Output is correct |
16 | Correct | 4 ms | 5120 KB | Output is correct |
17 | Correct | 4 ms | 5120 KB | Output is correct |
18 | Correct | 4 ms | 5120 KB | Output is correct |
19 | Correct | 11 ms | 5120 KB | Output is correct |
20 | Correct | 6 ms | 5120 KB | Output is correct |
21 | Correct | 7 ms | 5120 KB | Output is correct |
22 | Correct | 5 ms | 5120 KB | Output is correct |
23 | Correct | 19 ms | 6784 KB | Output is correct |
24 | Correct | 22 ms | 6784 KB | Output is correct |
25 | Correct | 27 ms | 6776 KB | Output is correct |
26 | Correct | 33 ms | 8616 KB | Output is correct |
27 | Correct | 38 ms | 8616 KB | Output is correct |
28 | Execution timed out | 1092 ms | 7032 KB | Time limit exceeded |
29 | Halted | 0 ms | 0 KB | - |