Submission #818761

#	Time	Username	Problem	Language	Result	Execution time	Memory
818761		vjudge1	Stove (JOI18_stove)	C++17	100 / 100	20 ms	2284 KiB

stove

#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define fi first
#define se second
#define endl "\n"
#define pii pair<ll,ll>
#define pb push_back
#define vi vector<ll>
#define pque priority_queue
#define pqueg priority_queue<ll,vector<ll>,greater<ll>>
#define que queue<ll>
#define FOR(m,i,n) for(int i=(m); i<=(n); i++)
#define FORM(m,i,n) for(int i=(m); i>=(n); i--)
#define all(v) sort(v.begin(),v.end())
ll n,k,ans;
ll a[100100];
pqueg pq;
int main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cin >> n >> k;
	FOR(1,i,n) {
		cin >> a[i];
	}
	ans = n;
	FOR(2,i,n) {
		pq.push(a[i] - a[i-1]-1);
	}
	FOR(1,i,n-k) {
		ans += pq.top();
		pq.pop();
	}
	cout << ans << endl;
}

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