In this simple assignment you are given a number and have to make it negative. But maybe the number is already negative?
Example:
Kata.MakeNegative(1); // return -1
Kata.MakeNegative(-5); // return -5
Kata.MakeNegative(0); // return 0
Notes:
- The number can be negative already, in which case no change is required.
- Zero (0) can't be negative, see examples above.
using System; public static class Kata
{
public static int MakeNegative(int number)
{
if(number > )
{
return -number;
}
else if(number < )
{
return number;
}
else
{
return ;
}
}
}
其他解法:使用绝对值函数或者问号表达式
using System; public static class Kata
{
public static int MakeNegative(int number)
{
return -Math.Abs(number);
}
}
using System; public static class Kata
{
public static int MakeNegative(int number)
{
return number > ? -number : number;
}
}