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Convert a sentence into its equivalent mobile numeric keypad sequence in C++
In this tutorial, we will be discussing a program to convert a sentence into its equivalent mobile numeric keypad sequence.
For this we will be provided with a string of alphabetical characters. Our task is to print the numeric equivalent of the string i.e the numerical sequence of the keys to type that particular string.
Example
#include <bits/stdc++.h>
using namespace std;
//computing the numerical sequence
string calc_sequence(string arr[], string input){
string output = "";
//length of input string
int n = input.length();
for (int i=0; i<n; i++){
//checking if space is present
if (input[i] == ' ')
output = output + "0";
else {
int position = input[i]-'A';
output = output + arr[position];
}
}
return output;
}
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 = "TUTORIALSPOINT";
cout << calc_sequence(str, input);
return 0;
}Output
8888666777444255577777666444668
Updated on: 06-Jan-2020
538 Views
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