JEE Maths Zone

# Instructions for moving n discs from
# peg1 to peg2 (where peg1, peg2 are
# distinct integers from 1 to 3)
def hanoi_instructions(n, peg1, peg2):
    if n == 1:
        print(f"Move disc 1 from peg {peg1} to peg {peg2}")
    else:
        peg3 = 6 - peg1 - peg2
        hanoi_instructions(n-1, peg1, peg3)
        print(f"Move disc {n} from peg {peg1} to peg {peg2}")
        hanoi_instructions(n-1, peg3, peg2)


# Demo
hanoi_instructions(3, 1, 2)

#include <bits/stdc++.h>
    using namespace std;

    string add(string a, string b){ //takes in two integers as strings and gives out the sum as a string
        int n = max(a.length()+1,b.length()+1);
        int t1 = n-a.length(), t2 = n-b.length();
        while (t1--){
            a = '0'+a;
        }
        while (t2--){
            b = '0'+b;
        }
        string s = "";
        int c = 0;
        while (n--){
            int n1 = a[n]-48, n2 = b[n]-48;
            int n3 = n1+n2+c;