Submission #1017435

#	Time	Username	Problem	Language	Result	Execution time	Memory
1017435		Luvidi	Stove (JOI18_stove)	C++17	100 / 100	14 ms	2188 KiB

stove

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

#define ll long long
#define pll pair<ll, ll>
#define pii pair<int, int>
#define fs first
#define sc second
#define pb push_back

void solve() {
    int n,k;
    cin>>n>>k;
    int a[n];
    for(int i=0;i<n;i++)cin>>a[i];
    int x=a[n-1]-a[0]+1;
    int b[n-1];
    for(int i=0;i<n-1;i++)b[i]=a[i+1]-a[i]-1;
    sort(b,b+n-1);
    reverse(b,b+n-1);
    for(int i=0;i<k-1;i++)x-=b[i];
    cout<<x;
}

int main() {   
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);

    solve();
}

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