Submission #779066

#	Time	Username	Problem	Language	Result	Execution time	Memory
779066		vjudge1	Stove (JOI18_stove)	C++17	100 / 100	18 ms	2088 KiB

stove

#include <iostream>
#include <algorithm>
#define MAX 100000
using namespace std;
///ifstream cin ("c.in");
///ofstream cout ("c.out");
int v[MAX + 10], gap[MAX + 10];
void speedy()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
}
int main()
{
    speedy();
    int n, k;
    cin >> n >> k;
    for (int i = 1; i <= n; i++)
        cin >> v[i];
    for (int i = 1; i < n; i++)
        gap[i] = v[i + 1] - (v[i] + 1);
    sort(gap + 1, gap + n);
    long long ans = n;
    for (int i = 1; i <= n - k; i++)
        ans = ans + gap[i];
    cout << ans;
    return 0;
}

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