# | 제출 시각 | 아이디 | 문제 | 언어 | 결과 | 실행 시간 | 메모리 |
---|---|---|---|---|---|---|---|
369150 | 2021-02-20T14:38:14 Z | BartolM | 구슬과 끈 (APIO14_beads) | C++17 | 1000 ms | 1024 KB |
#include <bits/stdc++.h> using namespace std; #define X first #define Y second #define mp make_pair #define pb push_back typedef long long ll; typedef pair <int, int> pii; typedef pair <int, pii> pip; typedef pair <pii, int> ppi; typedef pair <ll, ll> pll; const int INF=0x3f3f3f3f; const ll MAX=(ll)INF*INF; const int N=1e4+5; int n; vector <pii> ls[N]; int dp[N][2]; int rek(int node, int fl, int par) { int &ret=dp[node][fl]; if (ret!=-1) return ret; int sum0=0, ed; for (pii sus:ls[node]) { if (sus.X==par) { ed=sus.Y; continue; } sum0+=rek(sus.X, 0, node); } ret=sum0; for (pii sus:ls[node]) { if (sus.X==par) continue; if (!fl) ret=max(ret, ed+sus.Y+sum0-rek(sus.X, 0, node)+rek(sus.X, 1, node)); } return ret; } void load() { scanf("%d", &n); for (int i=0; i<n-1; ++i) { int a, b, c; scanf("%d %d %d", &a, &b, &c); ls[a].pb(mp(b, c)); ls[b].pb(mp(a, c)); } } int main() { load(); int sol=0; for (int i=1; i<=n; ++i) { memset(dp, -1, sizeof dp); sol=max(sol, rek(i, 1, 0)); } printf("%d\n", sol); return 0; }
Compilation message
# | 결과 | 실행 시간 | 메모리 | Grader output |
---|---|---|---|---|
1 | Correct | 1 ms | 620 KB | Output is correct |
2 | Correct | 1 ms | 620 KB | Output is correct |
3 | Correct | 1 ms | 620 KB | Output is correct |
4 | Correct | 1 ms | 620 KB | Output is correct |
5 | Correct | 1 ms | 620 KB | Output is correct |
6 | Correct | 1 ms | 620 KB | Output is correct |
7 | Correct | 1 ms | 620 KB | Output is correct |
8 | Correct | 1 ms | 620 KB | Output is correct |
9 | Correct | 1 ms | 620 KB | Output is correct |
10 | Correct | 1 ms | 620 KB | Output is correct |
11 | Correct | 1 ms | 620 KB | Output is correct |
12 | Correct | 1 ms | 620 KB | Output is correct |
# | 결과 | 실행 시간 | 메모리 | Grader output |
---|---|---|---|---|
1 | Correct | 1 ms | 620 KB | Output is correct |
2 | Correct | 1 ms | 620 KB | Output is correct |
3 | Correct | 1 ms | 620 KB | Output is correct |
4 | Correct | 1 ms | 620 KB | Output is correct |
5 | Correct | 1 ms | 620 KB | Output is correct |
6 | Correct | 1 ms | 620 KB | Output is correct |
7 | Correct | 1 ms | 620 KB | Output is correct |
8 | Correct | 1 ms | 620 KB | Output is correct |
9 | Correct | 1 ms | 620 KB | Output is correct |
10 | Correct | 1 ms | 620 KB | Output is correct |
11 | Correct | 1 ms | 620 KB | Output is correct |
12 | Correct | 1 ms | 620 KB | Output is correct |
13 | Correct | 1 ms | 620 KB | Output is correct |
14 | Correct | 1 ms | 620 KB | Output is correct |
15 | Correct | 1 ms | 620 KB | Output is correct |
16 | Correct | 3 ms | 620 KB | Output is correct |
17 | Correct | 3 ms | 620 KB | Output is correct |
18 | Correct | 3 ms | 620 KB | Output is correct |
19 | Correct | 3 ms | 620 KB | Output is correct |
20 | Correct | 3 ms | 620 KB | Output is correct |
21 | Correct | 3 ms | 620 KB | Output is correct |
22 | Correct | 3 ms | 620 KB | Output is correct |
# | 결과 | 실행 시간 | 메모리 | Grader output |
---|---|---|---|---|
1 | Correct | 1 ms | 620 KB | Output is correct |
2 | Correct | 1 ms | 620 KB | Output is correct |
3 | Correct | 1 ms | 620 KB | Output is correct |
4 | Correct | 1 ms | 620 KB | Output is correct |
5 | Correct | 1 ms | 620 KB | Output is correct |
6 | Correct | 1 ms | 620 KB | Output is correct |
7 | Correct | 1 ms | 620 KB | Output is correct |
8 | Correct | 1 ms | 620 KB | Output is correct |
9 | Correct | 1 ms | 620 KB | Output is correct |
10 | Correct | 1 ms | 620 KB | Output is correct |
11 | Correct | 1 ms | 620 KB | Output is correct |
12 | Correct | 1 ms | 620 KB | Output is correct |
13 | Correct | 1 ms | 620 KB | Output is correct |
14 | Correct | 1 ms | 620 KB | Output is correct |
15 | Correct | 1 ms | 620 KB | Output is correct |
16 | Correct | 3 ms | 620 KB | Output is correct |
17 | Correct | 3 ms | 620 KB | Output is correct |
18 | Correct | 3 ms | 620 KB | Output is correct |
19 | Correct | 3 ms | 620 KB | Output is correct |
20 | Correct | 3 ms | 620 KB | Output is correct |
21 | Correct | 3 ms | 620 KB | Output is correct |
22 | Correct | 3 ms | 620 KB | Output is correct |
23 | Execution timed out | 1094 ms | 1024 KB | Time limit exceeded |
24 | Halted | 0 ms | 0 KB | - |
# | 결과 | 실행 시간 | 메모리 | Grader output |
---|---|---|---|---|
1 | Correct | 1 ms | 620 KB | Output is correct |
2 | Correct | 1 ms | 620 KB | Output is correct |
3 | Correct | 1 ms | 620 KB | Output is correct |
4 | Correct | 1 ms | 620 KB | Output is correct |
5 | Correct | 1 ms | 620 KB | Output is correct |
6 | Correct | 1 ms | 620 KB | Output is correct |
7 | Correct | 1 ms | 620 KB | Output is correct |
8 | Correct | 1 ms | 620 KB | Output is correct |
9 | Correct | 1 ms | 620 KB | Output is correct |
10 | Correct | 1 ms | 620 KB | Output is correct |
11 | Correct | 1 ms | 620 KB | Output is correct |
12 | Correct | 1 ms | 620 KB | Output is correct |
13 | Correct | 1 ms | 620 KB | Output is correct |
14 | Correct | 1 ms | 620 KB | Output is correct |
15 | Correct | 1 ms | 620 KB | Output is correct |
16 | Correct | 3 ms | 620 KB | Output is correct |
17 | Correct | 3 ms | 620 KB | Output is correct |
18 | Correct | 3 ms | 620 KB | Output is correct |
19 | Correct | 3 ms | 620 KB | Output is correct |
20 | Correct | 3 ms | 620 KB | Output is correct |
21 | Correct | 3 ms | 620 KB | Output is correct |
22 | Correct | 3 ms | 620 KB | Output is correct |
23 | Execution timed out | 1094 ms | 1024 KB | Time limit exceeded |
24 | Halted | 0 ms | 0 KB | - |