A. Set UnionGiven two sets of integers, print the set containing the union of the two input sets. For example, g...

B. Caesar CipherByang wants to write a secret message to his friend. He has recently discovered Caesar Cipher. Caesa...

C. Little Subarray SumGiven an array of N numbers and two indices, determine the sum of the numbers in the array between (...

D. ASCII Progress BarIn this problem, you need to write a code that prints an ASCII progress bar. In each test case, you ...

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