Assume you have a map of key/values pairs of (UINS->NETIDS). The keys are the UINS and the values are the NTEIDS. Also assume this map is named: stu What happens, if you look up a UIN that is not currently stored in the map using the following code?

C++

“Days Into Year (C++)” By using my code (photo is attached), implement a Days Into Year function. It MUST BE of this form: int daysIntoYear ( int year, int month, int day ) ; In terms of "Days Into Year," how many days are we into the year based on a given date? For example, January 1 is 1 day into the year.   Please have the code display 12 test cases with the result from the function, and the number of days into the year from some other source.   So you can hand calculate the days into the year or use an internet web page.   The typical output might look like this: (Please make the format better but be sure to automatically calculate agree/disagree column) You must include a leap year function that returns a bool and takes as a parameter the year. This function must be used in your code.      Year    Month    day    Days Into Year     Value expected       Agree/Disagree 2020     1           1               1                     1                            agree 2020     1…

Write a C++ that Ask user to enter an integer number and then determine whether the number is prime or not? Note: a number is prime that it is only divisible by 1 and itself. such as 3,5,7,13,..