Print the first and last character of each word in a String
Given a string, the task is to print the first and last character of each word in a string.
Examples:
Input: Geeks for geeks Output: Gs fr gs Input: Computer applications Output: Cr as
Approach
- Run a loop from the first letter to the last letter.
- Print the first and last letter of the string.
- If there is a space in the string then print the character that lies just before space and just after space.
Below is the implementation of the above approach.
C++
// CPP program to print // the first and last character // of each word in a String #include<bits/stdc++.h> using namespace std; // Function to print the first // and last character of each word. void FirstAndLast(string str) { int i; for (i = 0; i < str.length(); i++) { // If it is the first word // of the string then print it. if (i == 0) cout<<str[i]; // If it is the last word of the string // then also print it. if (i == str.length() - 1) cout<<str[i]; // If there is a space // print the successor and predecessor // to space. if (str[i] == ' ' ) { cout<<str[i-1]<< " " <<str[i+1]; } } } // Driver code int main() { string str = "Geeks for Geeks" ; FirstAndLast(str); } // This code is contributed by // Surendra_Gangwar |
Java
// Java program to print // the first and last character // of each word in a String class GFG { // Function to print the first // and last character of each word. static void FirstAndLast(String str) { int i; for (i = 0 ; i < str.length(); i++) { // If it is the first word // of the string then print it. if (i == 0 ) System.out.print(str.charAt(i)); // If it is the last word of the string // then also print it. if (i == str.length() - 1 ) System.out.print(str.charAt(i)); // If there is a space // print the successor and predecessor // to space. if (str.charAt(i) == ' ' ) { System.out.print(str.charAt(i - 1 ) + " " + str.charAt(i + 1 )); } } } // Driver code public static void main(String args[]) { String str = "Geeks for Geeks" ; FirstAndLast(str); } } |
Python3
# Python3 program to print # the first and last character # of each word in a String' # Function to print the first # and last character of each word. def FirstAndLast(string): for i in range ( len (string)): # If it is the first word # of the string then print it. if i = = 0 : print (string[i], end = "") # If it is the last word of the string # then also print it. if i = = len (string) - 1 : print (string[i], end = "") # If there is a space # print the successor and predecessor # to space. if string[i] = = " " : print (string[i - 1 ], string[i + 1 ], end = "") # Driver code if __name__ = = "__main__" : string = "Geeks for Geeks" FirstAndLast(string) # This code is contributed by # sanjeev2552 |
C#
// C# program to print // the first and last character // of each word in a String using System; class GFG { // Function to print the first // and last character of each word. static void FirstAndLast( string str) { int i; for (i = 0; i < str.Length; i++) { // If it is the first word // of the string then print it. if (i == 0) Console.Write(str[i]); // If it is the last word of the string // then also print it. if (i == str.Length - 1) Console.Write(str[i]); // If there is a space // print the successor and predecessor // to space. if (str[i] == ' ' ) { Console.Write(str[i - 1] + " " + str[i + 1]); } } } // Driver code public static void Main() { string str = "Geeks for Geeks" ; FirstAndLast(str); } } // This code is contributed by Ryuga |
Javascript
<script> // JavaScript program to print // the first and last character // of each word in a String' // Function to print the first // and last character of each word. function FirstAndLast(str) { for ( var i = 0; i < str.length; i++) { // If it is the first word // of the string then print it. if (i == 0) document.write(str[i]); // If it is the last word of the string // then also print it. if (i == str.length - 1) document.write(str[i]); // If there is a space // print the successor and predecessor // to space. if (str[i] === " " ) { document.write(str[i - 1] + " " + str[i + 1]); } } } // Driver code var str = "Geeks for Geeks" ; FirstAndLast(str); </script> |
Output:
Gs fr Gs
Time Complexity: O(n) where n is the length of the string
Auxiliary Space: O(1)
Please Login to comment...