Category Archives: Python Programs – String

This is a Python program to print all permutations of a string in lexicographic order using recursion. Problem Description The problem is the display all permutations of a string in lexicographic or dictionary order. Problem Solution 1. The algorithm work by creating a recursive function get_next_permutation that returns the next higher permutation of a sequence … Read more

This is a Python program to print all permutations of a string in lexicographic order without using recursion. Problem Description The problem is the display all permutations of a string in lexicographic or dictionary order. Problem Solution 1. The algorithm work by first creating a loop that will run n! times where n is the … Read more

This is a Python Program to find all numbers which are odd and palindromes between a range of numbers without using recursion. Problem Description The program takes a range and prints all numbers which are odd and palindromes between the range without using recursion. Problem Solution 1. Take a upper limit and lower limit from … Read more

This is a Python Program to reverse a string without using recursion. Problem Description The program takes a string and reverses the string without using recursion. Problem Solution 1. Take a string from the user. 2. Use string slicing to reverse the string. 3. Print the reversed string. 4. Exit. Program/Source Code Here is source … Read more

Reverse a String in Python: Reversing a string refers to the process of reversing the order of characters in a given string. It involves rearranging the characters from the last to the first position, resulting in a new string that is the reverse of the original string. Examples: Input string: “first” Reversed String: “tsrif” Input … Read more

This is a Python Program to check whether a string is a palindrome or not using recursion. Problem Description The program takes a string and checks whether a string is a palindrome or not using recursion. Problem Solution 1. Take a string from the user. 2. Pass the string as an argument to a recursive … Read more

This is a Python Program to display which letters are in the first string but not in the second string. Problem Description The program takes two strings and displays which letters are in the first string but not in the second string. Problem Solution 1. Enter two input strings and store it in separate variables. … Read more

This is a Python Program to display which letters are present in both the strings. Problem Description The program takes two strings and displays which letters are present in both the strings. Problem Solution 1. Enter two input strings and store it in separate variables. 2. Convert both of the strings into sets and find … Read more

This is a Python Program to display which letters are in the two strings but not in both. Problem Description The program takes two strings and displays which letters are in the two strings but not in both. Problem Solution 1. Enter two input strings and store it in separate variables. 2. Convert both of … Read more

This is a Python Program to count the number of vowels present in a string using sets Problem Description The program takes a string and creates a dictionary with key as first character and value as words starting with that character. Problem Solution 1. Enter a string and store it in a variable. 2. Initialize … Read more