66) Convert a Sentence into its equivalent mobile numeric keypad sequence.cpp

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

// Function which computes the sequence
string printSequence(string arr[], string input)
{
	string output = "";

	// length of input string
	int n = input.length();
	for (int i = 0; i < n; i++) {
		// Checking for space
		if (input[i] == ' ')
			output = output + "0";

		else {
			// Calculating index for each
			// character
			int position = input[i] - 'A';
			output = output + arr[position];
		}
	}

	// Output sequence
	return output;
}

// Driver Code
int main()
{
	// storing the sequence in array
	string str[]
		= { "2", "22", "222", "3", "33", "333", "4",
			"44", "444", "5", "55", "555", "6", "66",
			"666", "7", "77", "777", "7777", "8", "88",
			"888", "9", "99", "999", "9999" };

	string input = "GEEKSFORGEEKS";
	cout << printSequence(str, input);
	return 0;
}