Submission #1124811

#	Time	Username	Problem	Language	Result	Execution time	Memory
1124811		username_____here	Stove (JOI18_stove)	C++20	100 / 100	16 ms	1096 KiB

stove

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
typedef vector<int> veci;
typedef vector<ll> vecll;
#define fi first
#define se second
#define vec vector
#define pq priority_queue

int main() {
	ios_base::sync_with_stdio(false); cin.tie(0);
	int n, k;
    cin >> n >> k;
    k = n-k;
    int a[n], diff[n-1], i;
    for (i=0; i<n; i++) {
        cin >> a[i];
    }
    for (i=0; i<n-1; i++) {
        diff[i] = a[i+1]-a[i];
    }
    sort(diff, diff+n-1);
    int ans=n;
    for (i=0; i<k; i++) {
        ans += diff[i]-1;
    }
    cout << ans;
	return 0;
}

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