Submission #521526

#	Time	Username	Problem	Language	Result	Execution time	Memory
521526		AdamGS	Stove (JOI18_stove)	C++17	100 / 100	21 ms	2048 KiB

stove

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
#define rep(a, b) for(int a = 0; a < (b); ++a)
#define st first
#define nd second
#define pb push_back
#define all(a) a.begin(), a.end()
const int LIM=1e5+7;
int T[LIM], P[LIM];
int main() {
	ios_base::sync_with_stdio(0); cin.tie(0);
	int n, k;
	cin >> n >> k;
	int ans=n;
	rep(i, n) {
		cin >> T[i];
		if(i) P[i-1]=T[i]-T[i-1]-1;
	}
	sort(P, P+n-1);
	rep(i, n-k) ans+=P[i];
	cout << ans << '\n';
}

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