Find the sum of digits of a number in C++.Our program will take one number as input from the user, calculate the sum of its digits and print it out.

ReadC++ program to find the sum of a factorial series. Our program will take the value of n from the user and find out the sum of the series.

ReadC++ program to find permutation and combination npr and ncr. The program will take values of n and r as input from the user and find out the required output.

ReadDifferent ways in C++ to remove the last character from a string. We will learn to do that by using substr(), size(), resize(), erase() and pop_back() methods with examples for each.

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