C++

// ConsoleApplication6.cpp : This file contains the 'main' function. Program execution begins and ends there. // #include<iostream> #include <fstream> #include<string> using namespace std; int take_input() { int input = 0; cout << "Enter the length you want to convert " << endl; cin >> input; return input; } void output(double arr[]) { for (int i = 0; i < 1; i++) { cout << arr[i] << " "; cout << "\n"; } } void write_to_file(double arr[]) { ofstream MyFile("out.txt"); for (int i = 0; i < 1; i++) { string str = to_string(arr[i]); MyFile << str << " "; } } void check(int input) { int unit; double arr[1]; cout << "Enter values in meter " << endl; for (int i = 0; i < 1; i++) { cin >> arr[i]; } cout << "You want to convert length into .. \n"; cout << "To convert into foot press 1" << endl; cout << "To convert into kilmeter press 2 " << endl; cin >> unit; if (unit == 1) { for (int i = 0; i < 1; i++) { arr[i] = arr[i] * 3.281; } cout << "The conversion in foot is " << endl; output(arr); write_to_file(arr); } else if (unit == 2) { for (int i = 0; i < 1; i++) { arr[i] = arr[i] * 1000; } cout << "The conversion in kilo meter is " << endl; output(arr); write_to_file(arr); } } void main() { int input; input = take_input(); check(input); system("pause"); }