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Submission #954978

# Submission time Handle Problem Language Result Execution time Memory
954978 2024-03-29T04:19:57 Z boyliguanhan Training (IOI07_training) C++17
0 / 100
 300 ms 524288 KB 
#include<bits/stdc++.h>
using namespace std;
#define int long long
vector<int>adj[1<<18];
int dp[3][1<<18],H[1<<18],T[1<<18];
void dfs(int n,int p){
    int sz=0,x=1e12;
    dp[0][n]=dp[1][n]=dp[2][n]=1e12;
    priority_queue<int>pq;
    pq.push(1e12);
    for(auto i:adj[n]) if(i-p){
        dfs(i,n);sz++;
        if(H[i]-H[n])
            dp[1+(H[i]<H[n])][i]=1e12;
        x+=dp[1][i];
        pq.push(dp[1][i]-dp[2][i]);
    }
    for(int i=0;i<=sz;i++){
        x-=pq.top();
        pq.pop();
        dp[0][n]=min(dp[0][n],x+T[n]*max(i,sz-i));
        dp[1][n]=min(dp[1][n],x+T[n]*max(i+1,sz-i));
        dp[2][n]=min(dp[2][n],x+T[n]*max(i,sz+1-i));
    }
}
signed main(){
    cin.tie(0)->sync_with_stdio(0);
    int n;
    cin>>n;
    for(int i=1;i<=n;i++) cin>>T[i];
    for(int i=1;i<=n;i++) cin>>H[i];
    for(int i=1,a,b;i<n;i++) cin>>a>>b,
        adj[a].push_back(b),adj[b].push_back(a);
    dfs(1,0);
    cout<<dp[0][1];
}

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 16472 KB Output is correct
2 Incorrect 4 ms 16476 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 516 ms 524288 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 644 ms 524288 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 7.0

# Verdict Execution time Memory Grader output
1 Execution timed out 413 ms 524288 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 9.0

# Verdict Execution time Memory Grader output
1 Execution timed out 488 ms 524288 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #6
0 / 9.0

# Verdict Execution time Memory Grader output
1 Execution timed out 459 ms 524288 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #7
0 / 9.0

# Verdict Execution time Memory Grader output
1 Execution timed out 388 ms 524288 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #8
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 4 ms 16732 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #9
0 / 9.0

# Verdict Execution time Memory Grader output
1 Execution timed out 410 ms 524288 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #10
0 / 9.0

# Verdict Execution time Memory Grader output
1 Runtime error 298 ms 524288 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #11
0 / 9.0

# Verdict Execution time Memory Grader output
1 Execution timed out 335 ms 524288 KB Time limit exceeded
2 Halted 0 ms 0 KB -