oj.uz

Submission #468942

# Submission time Handle Problem Language Result Execution time Memory
468942 2021-08-30T09:05:17 Z Autumn Building Bridges (CEOI17_building) C++17
30 / 100
 89 ms 131076 KB 
#include <bits/stdc++.h>
using namespace std;

#define int int64_t

vector<int> h;
vector<int> w;

vector<vector<int>> memo;
vector<vector<bool>> been;

int dp(int i, int last){
    if(been[i][last])return memo[i][last];
    been[i][last]=true;
    if(i==(int)h.size()-1)return memo[i][last]=(h[i]-h[last])*(h[i]-h[last]);
    int a=dp(i+1, i)+ (h[i]-h[last])*(h[i]-h[last]);
    int b=dp(i+1,last)+w[i];
    return memo[i][last]=min(a,b);
}


signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    
    int n;
    cin>>n;
    h.resize(n);
    w.resize(n);
    for(int i=0;i<n;i++){
        cin>>h[i];
    }
    for(int i=0;i<n;i++){
        cin>>w[i];
    }

    memo.resize(n,vector<int> (n));
    been.resize(n,vector<bool> (n));

    int costs=dp(1,0);
    cout<<costs<<"\n";

}

Subtask #1
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 14 ms 8432 KB Output is correct
5 Correct 15 ms 8396 KB Output is correct

Subtask #2
0 / 30.0

# Verdict Execution time Memory Grader output
1 Runtime error 89 ms 131076 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #3
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 14 ms 8432 KB Output is correct
5 Correct 15 ms 8396 KB Output is correct
6 Runtime error 89 ms 131076 KB Execution killed with signal 9
7 Halted 0 ms 0 KB -