Print square of any number by function (input in the main function)
# include <iostream> using namespace std; int sq(int number) // argument for function { int sq; // variable sq=number*number; // formula return sq; // the value is return from sq variable } void main () { // int n; cout<<"Please enter the number for square: "; // input is given in the main function cin>>n; int result; // variable is declare for function result=sq(n); // the 'result' is the variable in which the return value of function is store and 'n' is the argument of function cout<<"The square is :"<<result<<endl<<endl; }