Submission #166051

#	Time	Username	Problem	Language	Result	Execution time	Memory
166051		davooddkareshki	Stove (JOI18_stove)	C++17	100 / 100	30 ms	2168 KiB

stove

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef long double ld;

#define F first
#define S second

const int maxn = 1e5+10;
const int mod = 1e9+7;

int n, k;
int a[maxn], d[maxn];

int main()
{
    ios::sync_with_stdio(false); cin.tie(0); cout.tie(0);
    cin>> n >> k;
    for(int i = 0; i < n; i++)
    {
        cin>> a[i];
        if(i)
            d[i-1] = a[i] - a[i-1];
    }
    sort(d, d+n-1);
    int ans = n;
    for(int i = 0; i < n-k; i++)
        ans += d[i] - 1;
    cout<< ans;
}

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