#include <bits/stdc++.h>
using namespace std;
int main() {
ios_base::sync_with_stdio(false);
cin.tie(0); cout.tie(0);
int a, b;
cin >> a >> b;
long long pozitivni = 0;
long long negativni = 0;
for (int i = 1; i <= b; i++) {
if (i >= a) pozitivni += i;
int k = (b - i) / i;
negativni += (i * k);
/*
cout << i << " " << pozitivni << " ";
cout << negativni << " " << k << " ";
cout << (i * k) << '\n';
*/
}
//cout << ":::\n";
for (int i = 1; i < a; i++) {
int k = (a - 1 - i) / i;
negativni -= (i * k);
/*
cout << i << " " << pozitivni << " ";
cout << negativni << " " << k << " ";
cout << (i * k) << '\n';
*/
}
cout << abs(pozitivni - negativni);
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
5 ms |
384 KB |
Output isn't correct |
2 |
Incorrect |
5 ms |
384 KB |
Output isn't correct |
3 |
Incorrect |
5 ms |
384 KB |
Output isn't correct |
4 |
Incorrect |
114 ms |
504 KB |
Output isn't correct |
5 |
Incorrect |
64 ms |
384 KB |
Output isn't correct |
6 |
Incorrect |
58 ms |
384 KB |
Output isn't correct |
7 |
Incorrect |
55 ms |
384 KB |
Output isn't correct |
8 |
Incorrect |
18 ms |
384 KB |
Output isn't correct |