Submission #914666

#	Time	Username	Problem	Language	Result	Execution time	Memory
914666		Aiperiii	Stove (JOI18_stove)	C++14	100 / 100	40 ms	3328 KiB

stove

#include <bits/stdc++.h>
#define int long long
#define ff first
#define ss second
#define pb push_back
#define all(x) x.begin(),x.end()
using namespace std;
signed main(){
    int n,k;
    cin>>n>>k;
    vector <int> a(n);
    for(int i=0;i<n;i++)cin>>a[i];
    vector <int> v;
    for(int i=1;i<n;i++){
        v.pb(a[i]-a[i-1]);
    }
    sort(all(v));
    int ans=k;
    for(int i=0;i<v.size()-k+1;i++){
        ans+=v[i];
    }
    cout<<ans<<"\n";
}

Compilation message (stderr)

stove.cpp: In function 'int main()':
stove.cpp:19:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'long long unsigned int' [-Wsign-compare]
   19 |     for(int i=0;i<v.size()-k+1;i++){
      |                 ~^~~~~~~~~~~~~

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