Submission #147592

#	Time	Username	Problem	Language	Result	Execution time	Memory
147592		AlexPascu007	Savrsen (COCI17_savrsen)	C++98	120 / 120	1957 ms	78640 KiB

savrsen

#include <iostream>
#include <cmath>
using namespace std;
long long a,b,i,j,sol,d[10000010];
int main() {
    cin>>a>>b;
    for (i=1;i<=b;i++) {
        for (j=2*i;j<=b;j+=i)
            d[j]+=i;
        if (i>=a)
            sol+=abs(i-d[i]);
    }
    cout<<sol;
    return 0;
}

• Subtask 1: 120 / 120