제출 #1247913

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1247913		shiocan	Stove (JOI18_stove)	C++20	100 / 100	16 ms	2244 KiB

stove

#include <bits/stdc++.h>
#include <cstdlib>
#include <stdlib.h>
using namespace std;
#define ull unsigned long long 
#define ld long double
#define ll long long
#define int long long
#define pii pair<int, int>
#define all(v) v.begin(), v.end()
int mod = 1e9 + 7; 
const ll inf = 1e18;
const int N = 1e6 + 50, K = 22;

void solve(){
    int n, k;
    cin >> n >> k;

    vector<ll> a(n);
    for(auto & i : a)
        cin >> i;
    
    vector<ll> ans;
    for(int i = 0; i < n - 1; i++)
        ans.push_back(a[i + 1] - a[i] - 1);
    
    sort(all(ans), greater<ll>());
    
    ll res = 0;
    for(int i = 0; i < k - 1; i++)
        res += ans[i];

    cout << a[n - 1] - a[0] + 1 - res << '\n';
}

int32_t main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);

    int t = 1;
    // cin >> t;
    while(t--)
        solve();
        
    return 0;
}

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