Topic: language-problem / Level: intermediate

• 1202. Write a program to find the shortest path in a weighted graph using Dijkstras algorithm.
• 1203. Write a program to check if a string is a valid UTF-8 encoded string.
• 1204. Write a program to find the longest common prefix between two strings using a function.
• 1205. Write a program to implement a basic sorting algorithm (e.g., selection sort).
• 1206. Write a program to check if a number is a perfect square using binary search.
• 1207. Write a program to find the total number of even digits in a number.
• 1208. Write a program to implement a simple file copy application.
• 1209. Write a program to check if a string contains only digits.
• 1210. Write a program to find the total number of vowels in a string using a function.
• 1211. Write a program to calculate the power of a number using recursion.
• 1212. Write a program to find the first index of a character in a string.
• 1213. Write a program to implement a basic online bookstore application.
• 1214. Write a program to check if a number is a narcissistic number.
• 1215. Write a program to find the maximum length of a substring without repeating characters.
• 1216. Write a program to implement a simple character counter for a given text.
• 1217. Write a program to find the first non-repeated character in a string using a function.
• 1218. Write a program to check if two strings have the same characters (anagram check).
• 1219. Write a program to calculate the sum of the first n Fibonacci numbers.
• 1220. Write a program to implement a basic budget tracking application.
• 1221. Write a program to check if a number is a strong number.
• 1222. Write a program to find the average of numbers in a file.
• 1223. Write a program to convert kilometers to miles and vice versa using functions.
• 1224. Write a program to implement a simple recipe book application.
• 1225. Write a program to find the maximum and minimum values in an array using pointers.
• 1226. Write a program to check if a string is a valid email address using regex.
• 1227. Write a program to find the first duplicate element in an array using a function.
• 1228. Write a program to calculate the total marks for students and find the average.
• 1229. Write a program to check if a number is a prime number using a loop.
• 1230. Write a program to implement a simple banking system with basic transactions.
• 1231. Write a program to find the largest prime number less than a given number.
• 1232. Write a program to implement a basic stack using arrays.
• 1233. Write a program to check if two numbers are coprime using the GCD.
• 1234. Write a program to find the smallest digit in a number using a function.
• 1235. Write a program to check if a string is a valid time in the format HH
• 1236. Write a program to implement a simple quiz application with multiple-choice questions.
• 1237. Write a program to calculate the sum of digits in a number using a function.
• 1238. Write a program to find the maximum sum of a non-contiguous subarray.
• 1239. Write a program to implement a basic health tracker application.
• 1240. Write a program to check if a string is a valid hexadecimal number.
• 1241. Write a program to find the intersection of two arrays using a function.
• 1242. Write a program to implement a simple note-taking application with search functionality.
• 1243. Write a program to find the longest common subsequence between two strings.
• 1244. Write a program to check if a number is a triangular number.
• 1245. Write a program to calculate the area of a circle using user input.
• 1246. Write a program to find the first unique character in a string.
• 1247. Write a program to implement a basic library management system.
• 1248. Write a program to check if a string contains balanced parentheses.
• 1249. Write a program to find the median of a list of numbers.
• 1250. Write a program to convert a binary number to decimal using bitwise operations.
• 1251. Write a program to implement a basic student management system.

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