Submission #937488

#	Time	Username	Problem	Language	Result	Execution time	Memory
937488		carriewang	Stove (JOI18_stove)	C++17	100 / 100	19 ms	4828 KiB

stove

#include <bits/stdc++.h>
#define ll long long
#define vi vector<int>
#define pll pait<ll,ll>
#define sz(x) x.size()
#define all(x) x.begin(),x.end()
#define F first
#define S second
using namespace std;
priority_queue<ll> pq;
ll a[1000005],n,k,ans;
int main(){
    ios::sync_with_stdio(0),cin.tie(0);
    cin >> n >> k;
    k--;
    for(int i=0;i<n;i++){
        cin >> a[i];
    }
    ans=a[n-1]-a[0]+1;
    for(int i=1;i<n;i++) pq.emplace(a[i]-a[i-1]-1);
    while(k--){
        ans-=pq.top();
        pq.pop();
    }
    cout << ans << "\n";
}

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