Submission #1116836

#	Time	Username	Problem	Language	Result	Execution time	Memory
1116836		vjudge1	Stove (JOI18_stove)	C++14	100 / 100	21 ms	2868 KiB

stove

#include <bits/stdc++.h>
#define sts(v) stable_sort(v.BE, v.E)
#define Rsts(v) stable_sort(v.rBE, v.rE)
#define rev(v) reverse(v.BE, v.E)
#define BE begin()
#define rBE rbegin()
#define E end()
#define rE rend()
#define pb push_back
#define ppb pop_back()
#define pf push_front
#define ppf pop_front()
#define F first
#define S second

using namespace std;
using ll = long long;

int main(){
    ios_base::sync_with_stdio(0); 
    cin.tie(0); cout.tie(0);

    int n, k; cin >> n >> k;
    vector<int> v(n);

    for(int &i : v)cin >> i;

    sts(v);

    ll ans = n;
    priority_queue<int> q;
    k--;

    for(int i = 1; i < n; i++)
        q.push(v[i] - v[i - 1]);
    
    while(k-- && q.size())
        q.pop();

    while(q.size()){
        ans += q.top() - 1;
        q.pop();
    }

    cout << ans << '\n';
    
	
    return 0;
}

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