Problem Solving using C Language

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Strings

Practice: Strings

1. Basic String Operations

  • Write a program to input a string and print its length.
  • Write a program to concatenate two strings without using the strcat() function.
  • Write a program to compare two strings without using the strcmp() function.
  • Write a program to copy one string into another without using the strcpy() function.
  • Write a program to reverse a string without using the strrev() function.

2. String Manipulation

  • Write a program to count the number of vowels, consonants, digits, and spaces in a given string.
  • Write a program to remove all vowels from a given string.
  • Write a program to check whether a given string is a palindrome or not.
  • Write a program to convert a given string to uppercase without using the strupr() function.
  • Write a program to find the frequency of each character in a string.

3. Advanced String Operations

  • Write a program to remove all duplicate characters from a string.
  • Write a program to count the occurrences of a substring in a given string.
  • Write a program to replace a substring in a string with another substring.
  • Write a program to find if a string contains only digits.

4. String with Pointers

  • Write a program to reverse a string using a pointer.
  • Write a program to compare two strings using pointers.
  • Write a program to concatenate two strings using pointers.