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