Submission #673507

#	Time	Username	Problem	Language	Result	Execution time	Memory
673507		sudheerays123	Stove (JOI18_stove)	C++17	100 / 100	17 ms	2272 KiB

stove

#include<bits/stdc++.h>
using namespace std;
#define fast ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
#define ll long long int
const ll N = 100+5 , INF = 1e18 , MOD = 1e9+7;

void solve(){

	ll n,k;
	cin >> n >> k;

	vector<ll> a(n+5);
	for(ll i = 1; i <= n; i++) cin >> a[i];

	vector<ll> diff;
	for(ll i = 2; i <= n; i++) diff.push_back(a[i]-a[i-1]-1);

	sort(diff.begin(),diff.end());

	ll ans = n;
	for(ll i = 0; i < n-k; i++) ans += diff[i];

	cout << ans;
}

int main(){

	fast;

	ll tc = 1;
	// cin >> tc;
	while(tc--) solve();

	return 0;
}

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