R(a, b) currently contains the four tuples (0,4), (1,5), (2,4), and (3,5). s(c, d) currently contains the four tuples (2,10), (3,11), (4,12), and (5,13). as a result, certain insertions and deletions on s are illegal, as are certain updates or insertions on r. you should develop simple tests for illegal operations of these four kinds. then, show your understanding by indicating which of the following modifications will not be rejected because of a constraint violation.

a) inserting (5,0) into r.
b) inserting (1,4) into r.
c) updating (2,4) in r to be (2,2).
d) updating (3,5) in r to be (3,1).

Write a program that uses a two-dimensional array to store the highest and lowest temperatures for each month of the year. the program should output the average high, average low, and the highest and lowest temper- atures for the year. your program must consist of the following functions: a. function getdata: this function reads and stores data in the two- dimensional array. b. function averagehigh: this function calculates and returns the average high temperature for the year. c. function averagelow: this function calculates and returns the aver- age low temperature for the year. d. function indexhightemp: this function returns the index of the highest high temperature in the array. e. function indexlowtemp: this function retur