제출 #654262

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
654262		hail	Stove (JOI18_stove)	C++17	100 / 100	22 ms	3268 KiB

stove

#include <bits/stdc++.h>
 
using namespace std;
 
#define vi vector<int>
#define vll vector<long long>
#define pb push_back
using ll= long long;
#define fast_io ios::sync_with_stdio(0); cin.tie(0)
#define inpint(x) int x; cin>>x
#define inpll(x) long long x; cin>>x
#define fl(i, n) for(int i=0; i<n; i++)
#define flo(i, n) for(int i=1; i<=n; i++)
#define int long long 
#define pi pair<int, int>
#define mp make_pair
#define ld long double

const int MOD = 7 + (int)1e9;
const int INF = (int)1e18;

//

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

    vector<int> t(n+1, 0);
    for(int i=1; i<=n; i++)
    {
        cin>>t[i];
    }

    sort(t.begin()+1, t.end());

    vector<int> d(0);
    int tot = t.back() + 1 - t[1];

    for(int i=1; i<n; i++)
    {
        d.pb(t[i+1] - t[i] - 1);
    }

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

    int cnt = 1;
    while(cnt<k && (not d.empty()))
    {
        tot -= d.back();
        //cerr<<d.back()<<"\n";
        d.pop_back();
        cnt++;
    }

    cout<<tot;
}

signed main()
{
    fast_io;

    int t=1; 
    //cin>>t;
    while(t--)
    {
        solve();
    }
    cout<<endl;
}

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