Submission #785659

#	Time	Username	Problem	Language	Result	Execution time	Memory
785659		12345678	Stove (JOI18_stove)	C++17	100 / 100	15 ms	1808 KiB

stove

#include <bits/stdc++.h>

using namespace std;

int n, x, p, k;
long long ans;

int main()
{
    cin.tie(NULL)->sync_with_stdio(false);
    cin>>n>>k;
    vector<int> v;
    cin>>p;
    for (int i=0; i<n-1; i++)
    {
        cin>>x;
        if (x!=p+1) v.push_back(x-p-1);
        p=x;
    }
    sort(v.begin(), v.end());
    for (int i=0; v.size()-i>=k; i++) ans+=v[i];
    cout<<ans+n;
}

Compilation message (stderr)

stove.cpp: In function 'int main()':
stove.cpp:21:29: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   21 |     for (int i=0; v.size()-i>=k; i++) ans+=v[i];
      |                   ~~~~~~~~~~^~~

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