제출 #1099109

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1099109		imanghader	Stove (JOI18_stove)	C++17	100 / 100	16 ms	3292 KiB

stove

#include <bits/stdc++.h>
#if __has_include("prettyprint.hpp")
#include "prettyprint.hpp"
#endif
using namespace std;

#define ll long long
#define all(v) v.begin(), v.end()
#define watch(x) cout << (#x) << " is " << (x) << endl
#define mk make_pair

struct solve {
    void main() {
        ll n,k;cin>>n>>k;
        vector<ll> v(n);
        for (ll i=0;i<n;i++){
            cin>>v[i];
        }
        vector<ll> a;
        for (ll i=0;i<n-1;i++){
            a.push_back(v[i+1]-v[i]-1);
        }
        sort(all(a));
        reverse(all(a));
        ll ans=v[n-1]-v[0]+1;
        for (ll i=0;i<k-1;i++){
            ans-=a[i];
        }
        cout<<ans<<endl;
    }
};

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    ll t=1;
    /* cin >> t; */
    while (t--) {
        solve s;
        s.main();
    }
    return 0;
}

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