Hello guys ,
I’m stuck here in the subtraction. i did for MULTIPLICATION AND ADDITION. But god knows whats with the subtraction.
I want to Subtract two number that are stored in STRING.(Efficient Way )
e.g
string num1= "1233443267532847324324234234325454353";
string num2= "3842364753245832443534543534534";
string result;
//Parsing and all stuff
Sorry to ask this here But i really need some help here.
It’s exactly the same as the way you did it in kindergarten. You need a for loop that starts from the right most digit, subtract a digit at a time, “borrow ten” from the next column over if you need to, etc. If you just want code, do some Google searching.
void Subtract ()
{
int borrow = 0;
int difference = 0;
int digit_1 = 0;
int digit_2 = 0;
int k = 0;
char[] num1Char = num1.ToCharArray ();
char[] num2Char = num2.ToCharArray ();
int[] resultChar = new int[num1Char.Length];
// Array.Reverse (num1Char);
// Array.Reverse (num2Char);
int length1 = num1Char.Length;
int length2 = num2Char.Length;
for (int i=length1-1; i>=0; i--) {
//This works because each character is internally represented by a number.
//The characters '0' to '9' are represented by consecutive numbers,
//so finding the difference between the characters '0' and '2' results in the number 2.
digit_1 = num1Char *- '0';*
_ resultChar = difference;_
* }*
* for (int i=0; i<length1; i++)*
_ result.Append (resultChar ); //result = new StringBuilder ();_
* Debug.Log (result);*
* }*
I know Its a bit of mess …But i did it …