Submission #1203885

#	Time	Username	Problem	Language	Result	Execution time	Memory
1203885		back	Stove (JOI18_stove)	C++20	100 / 100	12 ms	1864 KiB

stove

#include <bits/stdc++.h>
#define int long long
#define pii pair<int, int>
#define fi first
#define se second
using namespace std;
const int N = 5e6 + 5;
const int MOD = 1e9 + 7;
const int inf = 1e18;
int n, k;
int a[N], b[N];

signed main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);

    cin >> n >> k;
    for (int i=1; i<=n; ++i) {
        cin >> a[i];
    }
    sort(a+1, a+n+1);
    for (int i=1; i<n; ++i) {
        b[i]=a[i+1]-a[i]-1;
    }
    sort(b+1, b+n);
    int sum=n;
    for (int i=1; i<=n-k; ++i) {
        sum+=b[i];
    }
    cout << sum;
    return 0;
}

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