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Sum of Beauty of All Substrings

Count the Number of Vowel Strings in Range

Write a Program to Find Number of Senior Citizens

Convert an Array Into a 2D Array With Conditions

Average Salary Excluding the Minimum and Maximum Salary

Find the Prefix Common Array of Two Arrays

Write a Program to Find Min Cost Climbing Stairs

Write a Program to Merge Two Sorted Lists

Write a Program to Defuse the Bomb

Write a Program to Calculate Time Needed to Buy Tickets