Submission #463627

#	Time	Username	Problem	Language	Result	Execution time	Memory
463627		NintsiChkhaidze	Stove (JOI18_stove)	C++14	100 / 100	26 ms	3240 KiB

stove

#include <bits/stdc++.h>
#define ll long long
#define pb push_back
#define pi pair<int,int>
#define s second
#define f first
#define int ll
using namespace std;

const int N = 100005;
int a[N];
vector <int> v;

signed main (){
    ios_base::sync_with_stdio(0),cin.tie(NULL),cout.tie(NULL);
    int n,k;
    cin>>n>>k;
    
    for (int i = 1; i <= n; i++)
        cin>>a[i];
    
    if (k == n){
        cout<<n;
        return 0;
    }
    
    sort(a + 1,a + n + 1);
    int res= a[n] + 1 - a[1];
    
    for (int i = 2; i <= n; i++)
        v.pb(a[i] - a[i - 1] - 1);
    
    sort(v.begin(),v.end());
    for (int i = v.size() - 1; i >= v.size() - k + 1; i--)
        res -= v[i];
    cout<<res;
}

Compilation message (stderr)

stove.cpp: In function 'int main()':
stove.cpp:34:34: warning: comparison of integer expressions of different signedness: 'long long int' and 'long long unsigned int' [-Wsign-compare]
   34 |     for (int i = v.size() - 1; i >= v.size() - k + 1; i--)
      |                                ~~^~~~~~~~~~~~~~~~~~~

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