Submission #964170

#	Time	Username	Problem	Language	Result	Execution time	Memory
964170		mel	Stove (JOI18_stove)	C++14	100 / 100	44 ms	2928 KiB

stove

#include <iostream>
using namespace std;
#include <algorithm>
#define int long long

int arr[100005];
int dif[100005];

signed main() {
        int n; cin >> n;
        int k; cin >> k;
        for (int i =0; i<n; i++){
                cin >> arr[i];
        }
        sort(arr, arr+n);
        for(int i = 0;i<(n-1);i++){
                dif[i] = arr[i+1]-arr[i];
        }
        sort(dif, dif+(n-1));
        if (k>=n) {
                cout << n;
        } else {
                int cnt = k;

                for (int i = 0; i<(n-k); i++) {
                        cnt+= dif[i];
                }
                cout << cnt;
        }
}

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