Submission #184103

#	Time	Username	Problem	Language	Result	Execution time	Memory
184103		Zelja	Savrsen (COCI17_savrsen)	C++14	120 / 120	2069 ms	78752 KiB

savrsen

#include <bits/stdc++.h>

using namespace std;
long long d[10000018],r;
int A,B;
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);

    cin >> A >> B;

    for(int i = 1; i <= B; i++){
        for(int j = 2*i; j <= B; j+=i)
            d[j] += i;
    }

    for(int i = A; i <= B; i++){
        r += abs(i - d[i]);
    }
    cout << r;
    return 0;
}

• Subtask 1: 120 / 120