Problem J. Data compressing Input file: Output file: Time limit: standard input standard output 1 second Memory limit: 256 megabytes You are given an array of size n. You need to assign each index from 1 to u for each distinct elememt of the array, where u is the amount of different numbers in the array. The less element is, the less its index. Input The first line of the input contains the only integer n - size of the array. The second line contains n integers a; - elements of the array. Output Print u lines. Each line must contain the index and the number that is assigned to this index. See samples for better understanding of the output. Examples standard input standard output 5 1 2 8 4 25 9 2 4 35 4 8 5 9 1 2 35253 23 3 5 10 11 11 22 1 2 1 22 1 22

You are a member of a standardization committee for a new C++ standard, and there is a proposal on the table to drop C-strings from the language and support only the C++ string class. State whether you would oppose or support the proposal and explain why.

Explain what is palindrome and write a code to check whether the given string is palindrome or not? write the code with proper explaination in C++ language.

Please us c++ to make the code thank you very much!

write a c++ code, in which a fucntion is using mathematical induction. add comments in each line of code.