Please reply quickly. Thank you so much!!! (1. and 2. are different programs)

Create a C++ (.cpp) program to perform the following 2 tasks: 1. (5 points) Ask the user for their first name (store it as a string), then separately ask the user to enter their last name (store it as a string). Combine the 2 strings into 1 result string then print the resulting string and also the length of the result string. Remember to include a space between the first and last names. Note: You can use the string type defined in C++ header file string (\#include), this will make combining the strings/finding length of a string more convenient. If using cin to read a string, it will terminate upon encountering a space/tabew line, so you will have to add a space when constructing the result string. For first/last names consisting of 2 or more words you can use getline(cin, mystring) to read in a whole line including spaces. 2. (5 points) Ask the user to enter a positive integer n. Calculate the sum: 1+2+3,,+n (sum of first n positive integers), also the sum of the first n squares i.e. 1+22+32+42++n2, then the sum of the first n cubes i.e. 1+23+33+43++n3, and finally the alternating sum: 12+34+56+7 +-n i.e. the odds are positive and the evens are negative. Then output the results. Note: For the first three sums, if you know the formulas, you can use them, but make sure to use a for loop at least for the last sum. BONUS 1 point: If you use structs/classes to implement any of your solutions, 1 point will be added to your assignment score