제출 #1236355

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1236355		Geforgs	Stove (JOI18_stove)	C++20	100 / 100	12 ms	1864 KiB

stove

#include <iostream>
#include <iomanip>
#include <vector>
#include <cmath>
#include <algorithm>
#include <set>
#include <queue>
#include <map>
#include <unordered_map>
#include <stack>
#include <bitset>
#include <string>
#include <cstring>
#include <iterator>
#include <random>
#define ll long long
#define ld long double
#define inf (ll)(2*1e18)
#define sort(a) sort(a.begin(), a.end())
#define reverse(a) reverse(a.begin(), a.end())
#define pb push_back
#define endl "\n"
using namespace std;

void solve(){
    ll n, k, res=0, i;
    cin>>n>>k;
    --k;
    vector<ll> a(n);
    vector<ll> b(n-1);
    for(i=0;i<n;++i){
        cin>>a[i];
    }
    res += a.back() - a.front() + 1;
    for(i=1;i<n;++i){
        b[i-1] = a[i] - a[i-1] - 1;
    }
    sort(b);
    reverse(b);
    for(i=0;i<k;++i){
        res -= b[i];
    }
    cout<<res<<endl;
}

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);
    srand(time(nullptr));
    ll t=1;
//    cin>>t;
    for(;t>0;--t){
        solve();
    }
    return 0;
}

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