Submission #1091927

#	Time	Username	Problem	Language	Result	Execution time	Memory
1091927		vjudge1	Stove (JOI18_stove)	C++17	100 / 100	18 ms	3292 KiB

stove

#include <bits/stdc++.h>
#define int long long
#define arr2 array<int, 2>
#define popcount __builtin_popcount
#define ctz __builtin_ctz

using namespace std;

const int N = 2e5;


void fun() {
    int n, k;
    cin >> n >> k;
    int arr[n];
    for (int i = 0; i < n; ++i) {
        cin >> arr[i];
    }
    sort(arr, arr + n);
    vector<int> boz;
    for (int i = 1; i < n; ++i) {
        boz.push_back(arr[i] - arr[i - 1] - 1);
    }
    sort(boz.begin(), boz.end());
    int sum = 0;
    for (int i = 0; i < (n - k); ++i) {
        sum += boz[i];
    }
    cout << n + sum << "\n";
}

int32_t main() {
    ios::sync_with_stdio(0);
    cout.tie(0);
    cin.tie(0);
    // int tc;
    // cin >> tc;
    // while (tc--)
    fun();
}
 

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