Author name: সুকান্ত পাল

Input How factorial works by using recursion 5 factorial(5) =5*factorial(5-1) =5*factorial(4) =5*{4*factorial(4-1)} =5*4*factorial(3) =5*4*{3*factorial(3-1)} =5*4*3*factorial(2) =5*4*3*{2*factorial(2-1)} =5*4*3*2*factorial(1) =5*4*3*2*{1*factorial(1-1)} =5*4*3*2*1*factorial(0) =5*4*3*2*1*{1} […]

Source Code: /*C program to swap two numbers using pointers.*/#include<stdio.h> // function : swap two numbers using pointersvoid swap(int *a,int

Source Code: #include <bits/stdc++.h>int GCD(int,int); ///Function Prototype int main(){      int a,b,result;      while(scanf(“%d %d”,&a,&b)==2)      {