Submission #565302

#	Time	Username	Problem	Language	Result	Execution time	Memory
565302		SSRS	Election Campaign (JOI15_election_campaign)	C++14	10 / 100	141 ms	10464 KiB

election_campaign

#include <bits/stdc++.h>
using namespace std;
int main(){
  int N;
  cin >> N;
  vector<vector<int>> E(N);
  for (int i = 0; i < N - 1; i++){
    int X, Y;
    cin >> X >> Y;
  }
  int M;
  cin >> M;
  vector<int> A(M), B(M), C(M);
  for (int i = 0; i < M; i++){
    cin >> A[i] >> B[i] >> C[i];
    if (A[i] > B[i]){
      swap(A[i], B[i]);
    }
    A[i]--;
  }
  vector<vector<int>> R(N + 1);
  for (int i = 0; i < M; i++){
    R[B[i]].push_back(i);
  }
  vector<int> dp(N + 1, 0);
  for (int i = 1; i <= N; i++){
    dp[i] = dp[i - 1];
    for (int j : R[i]){
      dp[i] = max(dp[i], dp[A[j]] + C[j]);
    }
  }
  cout << dp[N] << endl;
}

• Subtask 1: 0 / 10
• Subtask 2: 5 / 5
• Subtask 3: 5 / 5
• Subtask 4: 0 / 30
• Subtask 5: 0 / 10
• Subtask 6: 0 / 40