Submission #26023

#	Time	Username	Problem	Language	Result	Execution time	Memory
26023		iletavcioski	Unija (COCI17_unija)	C++14	100 / 100	426 ms	26796 KiB

unija

#include<iostream>
#include<vector>
#include<algorithm>
#include<cmath>
#include<iomanip>
using namespace std;
typedef  long long ll;
int main()
{
    ios_base::sync_with_stdio(false);
    int n;
    cin>>n;
    vector<pair<ll,ll> >v;
    for(int i=0;i<n;i++)
    {
        ll a,b;
        cin>>a>>b;
        b/=2;
        v.push_back(make_pair(a,b));
    }
    sort(v.begin(),v.end());
    reverse(v.begin(),v.end());
    int i=0;
    ll maxi=0;
    ll prethoden=0;
    ll brojac=0;
    while(i<n)
    {
        if(v[i].second>maxi)
        {
            brojac+=((v[i].second-maxi)*v[i].first);
            maxi=v[i].second;
                
        }
        i++;
    }
    brojac*=2;
    cout<<brojac<<endl;
    return 0;
}

Compilation message (stderr)

unija.cpp: In function 'int main()':
unija.cpp:25:8: warning: unused variable 'prethoden' [-Wunused-variable]
     ll prethoden=0;
        ^

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 10 / 10
• Subtask 5: 10 / 10
• Subtask 6: 10 / 10
• Subtask 7: 10 / 10
• Subtask 8: 10 / 10
• Subtask 9: 10 / 10
• Subtask 10: 10 / 10