Submission #299737

#	Time	Username	Problem	Language	Result	Execution time	Memory
299737		dolijan	Savrsen (COCI17_savrsen)	C++14	120 / 120	1740 ms	78636 KiB

savrsen

#include<bits/stdc++.h>
typedef long long ll;
using namespace std;
int  main()
{
    ll a,b;
    cin>>a>>b;
    ll zbirdelilaca[b+1];
    for(ll i=a;i<=b;i++) zbirdelilaca[i]=0;
    for(ll i=1;i<=b;i++)
    {
        ll sta=2*i;
        while(sta<a) sta+=i;
        while(sta<=b)
        {
            zbirdelilaca[sta]+=i;
            sta+=i;
        }
    }
    ll kolko=0;
    for(ll i=a;i<=b;i++) kolko+=abs(i-zbirdelilaca[i]);
    cout<<kolko<<endl;
}

• Subtask 1: 120 / 120