If I have a string vector and an int vector of the same size, how can I sort the name vector alphabetically and sort the int vector in the same order? For example, I have string vector with John, Bob, Mike and an int vector with their ages 20, 21, 22, and I want to sort the vectors so it becomes Bob, John, Mike and 21, 20, 22. If I sort their names alphabetically, how can I sort their ages so that they match up?