Submission #5945353
Source Code Expand
#include<bits/stdc++.h> #define rep(i,n) for(auto i=0;i<n;i++) using namespace std; int ans=0; vector<vector<int>>edge(1<<10,vector<int>()); vector<int>cost(1<<10,INT_MAX); void dfs(int from){ if(edge[from].size()==0)return; for(auto&& to:edge[from]){ ans+=cost[to]-cost[from]; dfs(to); } } int main(){ int n,m; cin>>n>>m; vector<int>parent(n+1); rep(i,n-1){ int v; cin>>v; edge[v].push_back(i+1); parent[i+1]=v; } vector<int>leaf; rep(i,m){ int v,b; cin>>v>>b; cost[v]=b; leaf.push_back(v); } for(auto&& v:leaf){ while(v!=0){ cost[parent[v]]=min(cost[parent[v]],cost[v]); v=parent[v]; } } cost[0]=0; dfs(0); cout<<ans<<endl; }
Submission Info
Submission Time | |
---|---|
Task | B - PackDrop |
User | hryshtk |
Language | C++14 (GCC 5.4.1) |
Score | 300 |
Code Size | 756 Byte |
Status | AC |
Exec Time | 2 ms |
Memory | 384 KB |
Judge Result
Set Name | All | ||
---|---|---|---|
Score / Max Score | 300 / 300 | ||
Status |
|
Set Name | Test Cases |
---|---|
All | 00_sample_1, 00_sample_2, 00_sample_3, 10_random_00_n_5, 10_random_01_n_10, 10_random_02_n_2, 10_random_03_n_7, 10_random_04_n_6, 20_random_00_n_64, 20_random_01_n_95, 20_random_02_n_20, 20_random_03_n_33, 20_random_04_n_91, 30_random_00_n_793, 30_random_01_n_611, 30_random_02_n_852, 40_random_00_n_1000, 40_random_01_n_1000, 50_edge_one_00_n_11, 50_edge_one_01_n_101, 50_edge_one_02_n_999, 98_almost_straight_00_n_1000, 98_almost_straight_01_n_1000, 98_almost_straight_02_n_1000, 99_straight_00_n_10, 99_straight_01_n_100, 99_straight_02_n_1000 |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
00_sample_1 | AC | 1 ms | 256 KB |
00_sample_2 | AC | 1 ms | 256 KB |
00_sample_3 | AC | 1 ms | 256 KB |
10_random_00_n_5 | AC | 1 ms | 256 KB |
10_random_01_n_10 | AC | 1 ms | 256 KB |
10_random_02_n_2 | AC | 1 ms | 256 KB |
10_random_03_n_7 | AC | 1 ms | 256 KB |
10_random_04_n_6 | AC | 1 ms | 256 KB |
20_random_00_n_64 | AC | 1 ms | 256 KB |
20_random_01_n_95 | AC | 1 ms | 256 KB |
20_random_02_n_20 | AC | 1 ms | 256 KB |
20_random_03_n_33 | AC | 1 ms | 256 KB |
20_random_04_n_91 | AC | 1 ms | 256 KB |
30_random_00_n_793 | AC | 2 ms | 256 KB |
30_random_01_n_611 | AC | 2 ms | 256 KB |
30_random_02_n_852 | AC | 2 ms | 256 KB |
40_random_00_n_1000 | AC | 2 ms | 256 KB |
40_random_01_n_1000 | AC | 2 ms | 256 KB |
50_edge_one_00_n_11 | AC | 1 ms | 256 KB |
50_edge_one_01_n_101 | AC | 1 ms | 256 KB |
50_edge_one_02_n_999 | AC | 2 ms | 256 KB |
98_almost_straight_00_n_1000 | AC | 1 ms | 384 KB |
98_almost_straight_01_n_1000 | AC | 1 ms | 384 KB |
98_almost_straight_02_n_1000 | AC | 1 ms | 384 KB |
99_straight_00_n_10 | AC | 1 ms | 256 KB |
99_straight_01_n_100 | AC | 1 ms | 256 KB |
99_straight_02_n_1000 | AC | 1 ms | 384 KB |