#include <iostream>
#define DIM 10000010
using namespace std;
int i,j,a,b,sol;
int d[DIM];
int main (){
for (i=2;i<DIM/2;i++){
for (j=i+i;j<DIM;j+=i)
d[j] += i;
}
cin>>a>>b;
for (i=a;i<=b;i++){
if (i == 1)
sol++;
else sol += max (i-d[i]-1,1+d[i]-i);
}
cout<<sol;
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1409 ms |
39488 KB |
Output is correct |
2 |
Correct |
1423 ms |
39544 KB |
Output is correct |
3 |
Incorrect |
1404 ms |
39484 KB |
Output isn't correct |
4 |
Incorrect |
1504 ms |
39492 KB |
Output isn't correct |
5 |
Incorrect |
1548 ms |
39488 KB |
Output isn't correct |
6 |
Incorrect |
1497 ms |
39544 KB |
Output isn't correct |
7 |
Incorrect |
1548 ms |
39544 KB |
Output isn't correct |
8 |
Incorrect |
1399 ms |
39528 KB |
Output isn't correct |