Submission #752105

#	Time	Username	Problem	Language	Result	Execution time	Memory
752105		vjudge1	Stove (JOI18_stove)	C++17	100 / 100	26 ms	1876 KiB

stove

#include<bits/stdc++.h>
using namespace std;
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#define fi first
#define se second
#define ll long long
#define pii pair<int,int>
#define piii pair<int, pair<int, int>
#define v(int) vector<int>
#define si size()
#define foe(i,a,b) for(int i=a;i<=b;++i)
#define fol(i,a,b) for(int i=a;i<b;++i)
#define pb push_back
#define Bit(mask,i) (1<<i)&mask
#define offBit(mask,i) (1<<i)^mask
#define onBit(mask,i) (1<<i)mask
#define CNT(x) __builtin_popcountll(x)
const ll int mod = 1e9+7;
const ll int base = 2309;
const ll int inf = 1e18;
const int N = 1e6+10;
const int LG = 20;
// ▄  ▄ ▄  ▄ ▄  ▄ ▄  ▄ ▄  ▄ ▄▄ ▄ ▄▄▄▄
// █▄▄█ █  █ █  █ █▄▄█ █  █ ██ █ █ ▄▄
// █  █ █▄▄█ █▄▄█ █  █ █▄▄█ █ ██ █▄▄█

ll n, k;
priority_queue<int, v(int), greater<int>> pq;
int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    cin >> n >> k;
    int last;
    cin >> last;
    fol(i,1,n)
    {
        int t;
        cin >> t;
        pq.push(t - last - 1);
        last = t;
    }
    int ans = n;
    fol(i,0,n-k)
    {
        ans += pq.top();
        pq.pop();
    }
    cout << ans;
}

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