Submission #1146383

#	Time	Username	Problem	Language	Result	Execution time	Memory
1146383		eloj	Stove (JOI18_stove)	C++20	100 / 100	52 ms	1440 KiB

stove

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define ff first
#define ss second
#define pb push_back
#define pii pair<int,int>



int main() {
	int n, k;
	cin >> n >> k;
	int a[n];
	k--;
	for(int i = 0; i < n; i++) {
		cin >> a[i];
	}
	vector<int> v;
	for(int i = 1; i < n; i++) {
		v.push_back(a[i] - a[i - 1] - 1);
	}
// 	for(auto x:v) cout << x << ' ';
// 	return 0;
	sort(v.begin(), v.end());
	int s = 0;
	for(int i = 0; i < n - k - 1 ; i++) {
		s += v[i];
	}
	cout << n + s << '\n';
	return 0;
}

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