#include <stdio.h>
int main()
{
long long a,b,c;
scanf ("%lld %lld",&a,&b);
a = (a + 1) / 2;
b = b / 2;
c = b * (b + 1) - a * (a - 1);
if (a == 1) c -= 2;
printf ("%lld",c);
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
0 ms |
1088 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
1088 KB |
Output is correct |
2 |
Correct |
0 ms |
1088 KB |
Output is correct |
3 |
Correct |
0 ms |
1088 KB |
Output is correct |
4 |
Correct |
0 ms |
1088 KB |
Output is correct |
5 |
Correct |
0 ms |
1088 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
1088 KB |
Output is correct |
2 |
Correct |
0 ms |
1088 KB |
Output is correct |
3 |
Correct |
0 ms |
1088 KB |
Output is correct |
4 |
Correct |
0 ms |
1088 KB |
Output is correct |
5 |
Correct |
0 ms |
1088 KB |
Output is correct |