Submission #799444

#	Time	Username	Problem	Language	Result	Execution time	Memory
799444		anton	Safety (NOI18_safety)	C++17	7 / 100	7 ms	2260 KiB

safety

#include<bits/stdc++.h>

using namespace std;
#define int long long
const int INF = 1e18;
const int MAX_N = 500;
const int MAX_H = 500;
int n, h;
int A[MAX_N];
int dp[MAX_N][MAX_H];
signed main(){
    cin>>n>>h;

    for(int i = 0; i<n; i++){
        cin>>A[i];
    }

    for(int i = n; i>=0; i--){
        for(int j = 0; j<MAX_H; j++){
            if(i==n){
                dp[i][j] = 0;
            }
            else{
                dp[i][j] = INF;
                for(int k = max(0LL,j-h); k<=min(MAX_H-1,j+h); k++){
                    dp[i][j] = min(dp[i][j], dp[i+1][k] + abs(k-A[i]));
                }
            }
        }
    }

    int res= INF;

    for(int i = 0; i<MAX_H; i++){
        res= min(res, dp[0][i]);
    }

    cout<<res<<endl;
}

• Subtask 1: 3 / 3
• Subtask 2: 4 / 4
• Subtask 3: 0 / 9
• Subtask 4: 0 / 5
• Subtask 5: 0 / 6
• Subtask 6: 0 / 11
• Subtask 7: 0 / 11
• Subtask 8: 0 / 22
• Subtask 9: 0 / 29