First define all the basic operation you can apply on two numbers.
Binary operation : +, -, *, /, %, optional(&(and), |(or), ^(xor))
Unary operation : !, ~, -
Comparison : <, > ==, !=
Define all these operation.
Most simplest one can be,
class BIG_INT {
private string val;
//Define constructor
private BIG_INT(){}
public BIG_INT(int x) {
this.val = x.toString();
}
public BIG_INT(long x) {
this.val = x.toString();
}
public BIG_INT(string x) {
this.val = x;
}
public BIG_INT add(BIG_INT x);
public BIG_INT add(int x);
public BIG_INT add(long x);
similarly write methods for other operation also;
}
If this question asked for only design testing purpose only all method
declaration will be sufficient.
--
Anshuman Mishra | Software Development Engineer | Amazon
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