제출 #1118262

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1118262		tsengang	Stove (JOI18_stove)	C++17	100 / 100	22 ms	3056 KiB

stove

#include <bits/stdc++.h>
#define ll long long
#define ff first
#define ss second
#define all(x) x.begin(), x.end()
#define pb push_back
#define ertunt return
#define vodka void
using namespace std;
int main() {
    ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
    ll n,k;
    cin >> n >> k;
    ll a[n];
    for(ll i = 0; i < n; i++)cin >> a[i];
    ll b[n-1];
    ll ans = 0;
    for(ll i = 0; i < n-1; i++){
        b[i] = a[i+1] - a[i];
        ans+=b[i];
    }
    sort(b,b+n-1);
    reverse(b,b+n-1);
    ans++;
    k--;
    ll j = 0;
    while(k--){
        ans-=b[j];
        ans++;
        j++;
    }
    cout << ans;
}

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