Leetcode-Basic/AddStrings.java at main · kavya-7777/Leetcode-Basic · GitHub

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//415. Add Strings

class Solution {
    public String addStrings(String num1, String num2) {
        StringBuilder result = new StringBuilder();
        int i = num1.length() - 1;
        int j = num2.length() - 1;
        int carry =0;
        while(i>=0 || j>=0 || carry!=0){
            int n1 = (i>=0)? num1.charAt(i--) - '0' : 0;
            int n2 = (j>=0)? num2.charAt(j--) - '0' : 0;
            int sum = n1 + n2 + carry;
            result.append(sum % 10);
            carry = sum / 10;
        }
        return result.reverse().toString();
    }
=======
//415. Add Strings

class Solution {
    public String addStrings(String num1, String num2) {
        StringBuilder result = new StringBuilder();
        int i = num1.length() - 1;
        int j = num2.length() - 1;
        int carry =0;
        while(i>=0 || j>=0 || carry!=0){
            int n1 = (i>=0)? num1.charAt(i--) - '0' : 0;
            int n2 = (j>=0)? num2.charAt(j--) - '0' : 0;
            int sum = n1 + n2 + carry;
            result.append(sum % 10);
            carry = sum / 10;
        }
        return result.reverse().toString();
    }
>>>>>>> be6ce0b427078b1421d5dd74adb2300dc02daeec
}