Submission #1089847

#	Time	Username	Problem	Language	Result	Execution time	Memory
1089847		Frostidian	Stove (JOI18_stove)	C++14	100 / 100	19 ms	3108 KiB

stove

#include <bits/stdc++.h>
using namespace std;

#define int long long
#define endl "\n"

const int MX = 1e5 + 5;

int a[MX], sa = 0, n, k;
priority_queue < int > pq;

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

    cin >> n >> k;
    for ( int i = 1; i <= n; i++ ){
        cin >> a[i]; 
        if ( i == 1 ) continue;
        pq.push(a[i] - a[i - 1] - 1);
        sa += ( a[i] - a[i - 1] - 1 );
    }

    for ( int i = 1; i <= k - 1; i++ ){
        sa -= pq.top(); pq.pop();
    }

    cout << sa + n << endl;
}

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