#include <bits/stdc++.h>
#define ld long double
#define ll long long
#define sz size()
#define all(xx) xx.begin(),xx.end()
#define pb push_back
#define in insert
#define er erase
#define S second
#define F first
#define pii pair <int, int>
#define to_be continue
#define mp make_pair
#define stop exit (0)
#define fname ""
#define speed ios_base::sync_with_stdio(0);cin.tie(0)
#define input freopen (fname".in", "r", stdin)
#define output freopen (fname".out", "w", stdout)
#define int ll
#define N 10200000
using namespace std;
const int inf = 1e9 + 123;
const ll INF = 1e18 + 123;
const double pi = acos (-1.0);
const ld eps = 1e-3;
ll a, b, ans, sum;
main ()
{
speed;
cin >> a >> b;
for (int i = a; i <= b; i ++)
{
sum = i;
if (i != 1)
sum --;
for (int j = 2; j * j <= i; j ++)
{
if (i % j == 0)
{
sum -= j + (i / j);
if (i / j == j)
sum += j;
}
}
sum = abs (sum);
//cout << sum << endl;
ans += sum;
}
cout << ans;
}
//Coded by A....
Compilation message
savrsen.cpp:32:7: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
main ()
^
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
256 KB |
Output is correct |
| 2 |
Correct |
2 ms |
500 KB |
Output is correct |
| 3 |
Correct |
282 ms |
500 KB |
Output is correct |
| 4 |
Correct |
41 ms |
500 KB |
Output is correct |
| 5 |
Execution timed out |
3038 ms |
504 KB |
Time limit exceeded |
| 6 |
Execution timed out |
3039 ms |
504 KB |
Time limit exceeded |
| 7 |
Execution timed out |
3042 ms |
504 KB |
Time limit exceeded |
| 8 |
Execution timed out |
3029 ms |
504 KB |
Time limit exceeded |
