Submission #1241927

#	Time	Username	Problem	Language	Result	Execution time	Memory
1241927		thethao2202	Stove (JOI18_stove)	C++20	100 / 100	12 ms	2244 KiB

stove

#include <bits/stdc++.h>
#define int long long
using namespace std;
int n, k;
vector<int> v;
int a[100005];
main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);
    cin >> n >> k;
    for (int i = 0; i < n; i++)
    {
        cin >> a[i];
    }
    for (int i = 1; i < n; i++)
    {
        int j = a[i] - a[i - 1];
        v.push_back(j);
        // cout<<a[i] - a[i - 1];
    }
    sort(v.begin(), v.end());
    int dem = 0;
    for (int i = 0; i < n - k; i++)
    {
        dem += v[i];
    }
    cout << dem + k;
}

Compilation message (stderr)

stove.cpp:7:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    7 | main()
      | ^~~~

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