Submission #1272722

#	Time	Username	Problem	Language	Result	Execution time	Memory
1272722		gazizmadi11	Stove (JOI18_stove)	C++20	100 / 100	14 ms	2248 KiB

stove

#include <bits/stdc++.h>
#define pb push_back
#define pf push_front
#define F first
#define S second
#define all(v) v.begin(),v.end()
#define pii pair<int,int>
#define tm (tl+tr)/2
#define TL v+v, tl, tm
#define TR v+v+1, tm+1, tr
#define DA l <= tl && tr <= r
#define NE r < tl || tr < l
#define double long double
#define int long long 
using namespace std;
 
const int N=2e5+7;
const int mod=998244353;
const int inf=2e9;

void solve(){
    int n, k;
    cin >> n >> k;
    int a[n+1]{};
    vector<int>v;
    for(int i=1; i <= n; i++){
        cin >> a[i];
        if(i>1)v.pb(a[i]-a[i-1]-1);
    }
    v.pb(0);
    sort(all(v));
    int ans=a[n]-a[1]+1;
    for(int i=n-1; i > n-k; i--)ans -= v[i];
    cout << ans;
}

signed main(){
 
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int t=1;
    // cin >> t;     
    while(t--)solve();
    
return 0;
}

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