1. Important This programming assigument is for ALL the students, those who subscribed to
zyBooks and those who did not. It contains one problem. - Submit your source code on Moodle.
You must name your source file as follows: - For write your code in a file named a5submat.ce -
Use source file templatef.cc from the files provided on Moodle to start your program. - The
problem is marked out of 10 points. 2 Programming problem P1: A matrix is a two dimensional
vector (or a vector of vectors). See https://en.wikipedia.org/ wiki/Matrix_(mathenatics) for a
definition. A sub-matrix A of a matrix A is a matrix obtained by retaining elements of A that
belong to a subset of rows and columns of A. We consider the rows and columns of A identified
by their index. For example, suppose matrix A is a 45 matrix. The leftmost column of A is at
index 0 . The rightmost column of A is at index 4. The top row of A is at index 0 and the bottom
row of A is at. index 3. Then, the sub-matrix A obtained by selecting rows from 1 to 2 and
columns from 1 to 3 is given below.
AA=11010010002202002000330300300044040040005505005000=(202003030040400) Write a
program that reads a matrix of 'double' values with n rows and m columns from the input. The
first two values in the input are the positive integers n and m. Following are nm fractional values
for the entries of the matrix. The entries are listed in the input row by row. The last four values in
the input are the positive integers r,r+,c,c+, representing the smallest row index, the largest row
index, the smallest column index, and the largest column index of the sub-matrix, respectively.
For sub-matrix A above, r=1,r+=2,c=1,c+=3. Your program then outputs the sum of the entries
in the sub-matrix identified by integers r,r+,c,c+. You may assume that the values for r,r+,c,c+are
valid. Do not write any messages before reading your input. Design your output like in the
example below. Input:
Output: Input: Output: