Submission #586714

#	Time	Username	Problem	Language	Result	Execution time	Memory
586714		Vanilla	Stove (JOI18_stove)	C++17	100 / 100	52 ms	2772 KiB

stove

#include <bits/stdc++.h>
using namespace std;
typedef long long int64;
const int maxn = 2e5 + 2;

int main() {
	int n,k;
	cin >> n >> k;
	vector <int64> a (n);
	vector <int64> diff (n - 1);
	for (int i = 0; i < n; i++){
		cin >> a[i];
		if (i != 0) diff[i-1] = a[i] - a[i-1] - 1;
	}
	int64 rs = a[n-1] - a[0] + 1;
	sort(diff.begin(), diff.end(), [] (int64 &a, int64 &b) {
		return a > b;
	});
	for (int i = 0; i < k - 1; i++){
		rs-=diff[i];
	}
	cout << rs << "\n";
	return 0;
}

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