Submission #780636

#	Time	Username	Problem	Language	Result	Execution time	Memory
780636		PikachudoraEHE67	Stove (JOI18_stove)	C++14	100 / 100	19 ms	1300 KiB

stove

#include<bits/stdc++.h>
#define fi first
#define se second
#define ll long long
#define pii pair<int,int>
#define piii pair<int,pii>
int const ee = 1e9 + 7;
using namespace std;
int s[100005];priority_queue<int,vector<int>>pq;
int main(){
    ios_base::sync_with_stdio(0);cin.tie(0);
    int n,m;cin>>n>>m;
    int nn=INT_MAX,mm=INT_MIN;
    for(int i=1;i<=n;i++){
        cin>>s[i];
        if(i>1)pq.push(s[i]-s[i-1]);
        mm=max(mm,s[i]);nn=min(nn,s[i]);
    }
    int ss = mm-nn;int mmm = m;
    m--;
    while(m--){
        //cout<<pq.top();
        ss-=pq.top();pq.pop();
    }
    cout<<ss+mmm;
return 0;
}

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