More Problems

• Write a program to find the first duplicate character in a string.
• Write a program to implement a simple version of the game Hangman.
• Write a program to find the frequency of elements in an array.
• Write a program to calculate the total marks of students and find the average.
• Write a program to check if a string is a valid hexadecimal color code.
• Write a program to find the longest palindrome substring in a string.
• Write a program to implement a simple text-based game with multiple levels.
• Write a program to find the smallest prime factor of a number using trial division.