Submission #487241

#	Time	Username	Problem	Language	Result	Execution time	Memory
487241		ala2	Stove (JOI18_stove)	C++14	50 / 100	166 ms	201272 KiB

stove

#include <bits/stdc++.h>

using namespace std;
int dp[5010][5010];
int t[1001000];
int f(int i,int k)
{
    //cout<<"        "<<i<<"  "<<k<<endl;
    if(dp[i][k]!=-1)
        return dp[i][k];
    if(k<=0)
        return 1000000000;
    if(i==0)
        return 1;
    return dp[i][k]=min(f(i-1,k-1)+1,f(i-1,k)+t[i]+1-t[i-1]);

}
int main()
{
    int n,k;
    cin>>n>>k;
    memset(dp,-1,sizeof dp);
    for(int i=0;i<n;i++)
        cin>>t[i];
    cout<<f(n-1,k)-n+k;
}

• Subtask 1: 20 / 20
• Subtask 2: 30 / 30
• Subtask 3: 0 / 50