Submission #1241909

#	Time	Username	Problem	Language	Result	Execution time	Memory
1241909		trantien3771	Stove (JOI18_stove)	C++20	100 / 100	13 ms	3012 KiB

stove

#include <bits/stdc++.h>
#define int long long
const int maxn = 2e5 + 5;
const int mod = 11229837253;

using namespace std;

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

    int n, k, a[maxn];
    cin >> n >> k;
    vector<int> v;
    for (int i = 1; i <= n; i++){
        cin >> a[i];
        if (i >= 2) v.push_back(a[i] - a[i - 1]);
    }
    sort(v.begin(), v.end());


    int sum = 0;
    for (int i = 1; i <= n - k; i++){
        sum += v[i - 1];
    }
    cout << sum + k;

    return 0;
}

Compilation message (stderr)

stove.cpp:8:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    8 | main(){
      | ^~~~

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