제출 #587641

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
587641		shrimb	Stove (JOI18_stove)	C++17	100 / 100	31 ms	2776 KiB

stove

#pragma GCC optimize ("Ofast")
#pragma GCC target ("avx,avx2,fma")

#include"bits/stdc++.h"
using namespace std;

#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;

template<class x>
using ordered_set = tree<x, null_type,less<x>, rb_tree_tag,tree_order_statistics_node_update>;

#define int long long
#define endl '\n'
#define mod 1000000007
//\
#define mod 1686876991

// joi 2018 not aliens trick :(

int n, k;

int a[100001];

signed main () {
    cin.tie(0)->sync_with_stdio(0);

    cin >> n >> k;
    for (int i = 0 ; i < n ; i++) cin >> a[i];
    sort(a, a + n);

    int d[n - 1];
    for (int i = 1 ; i < n ; i++) d[i-1] = a[i] - (a[i-1] + 1);
    sort(d, d + n - 1);
    int ans = a[n-1] - a[0] + 1;
    k = min(k - 1, n - 1);
    for (int i = 0 ; i < k ; i++) {
        ans -= d[n - 2 - i];
    }
    cout << ans << endl;
}

컴파일 시 표준 에러 (stderr) 메시지

stove.cpp:17:1: warning: multi-line comment [-Wcomment]
   17 | //\
      | ^

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