Submission #66721

#	Time	Username	Problem	Language	Result	Execution time	Memory
66721		cdemirer	Stove (JOI18_stove)	C++17	100 / 100	93 ms	5884 KiB

stove

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int, int> ii;
typedef vector<int> vi;
typedef vector<ii> vii;
typedef vector<vii> vvii;
typedef vector<vi> vvi;
typedef pair<double, double> dodo;
#define pb(x) push_back(x)
#define mp(x, y) make_pair(x, y)


int N, K;
int arr[100000];

int main(int argc, char **argv) {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	
	cin >> N >> K;
	for (int i = 0; i < N; i++) {
		cin >> arr[i];
	}
	multiset<int> MS;
	for (int i = 0; i < N-1; i++) {
		MS.insert(arr[i+1] - arr[i] - 1);
	}
	K = N-K;
	int ans = N;
	while (K--) {
		ans += *MS.begin();
		MS.erase(MS.begin());
	}
	cout << ans << endl;
	
	return 0;
}

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