Sign of Product
Statement
Goal
Given two integers a and b, answer the sign of the product of a, a+1, ..., b.Input
Two integers a and b separated by space.
Output
If the product is positive, output 1 . If it is zero, output 0 . If it is negative, output -1 .
Constraints
-10^10 ≤ a ≤ b ≤ 10^10
Example
Input
3 5
Output
1
Game modes
Fastest, Shortest
Test cases
Example Test
Input
3 5
Output
1
Validator 1 Validator
Input
8 13
Output
1
1,1,1 Test
Input
2 8
Output
1
Validator 2 Validator
Input
2833 4792
Output
1
0,1,0 Test
Input
0 7
Output
0
Validator 3 Validator
Input
0 38727
Output
0
0,0,0 Test
Input
0 0
Output
0
Validator 4 Validator
Input
0 0
Output
0
-1,1,0 Test
Input
-1 3
Output
0
Validator 5 Validator
Input
-683215 58743823
Output
0
-1,0,0 Test
Input
-9 0
Output
0
Validator 6 Validator
Input
-368921 0
Output
0
-1,-1,1 Test
Input
-9 -6
Output
1
Validator 7 Validator
Input
-321687 -321044
Output
1
-1,-1,-1 Test
Input
-4 -2
Output
-1
Validator 8 Validator
Input
-43 -21
Output
-1
Large Both Positive Test
Input
1 10000000000
Output
1
Validator 9 Validator
Input
7 9994992999
Output
1
Large Both Negative Test
Input
-10000000000 -1
Output
1
Validator 10 Validator
Input
-9997491183 -381
Output
-1
Solution language
Solution
Stub generator input