Problem 1: deletespaces.c
I this problem you will write a program that reads a string, deletes any whitespace from the string, and prints the result back to the user. Read the string using fgets, a safe way to read in strings. To read a string of length at most n into char* str, use the following: fgets(str, n + 1, stdin);
Generally, fgets is used to read a string from a file, but using stdin as the third argument causes fgets to read a string from stdin instead. Example output:
[rsgysel@pc17 \~]\$ ./deletespaces
Enter a max string length: 99
Enter the string to delete whitespace from: The Quick Brown Fox Jumps Over The Lazy Dog Result:
TheQuickBrownFoxJumpsOverTheLazyDog
[rsgysel@pc17 \~]\$ ./deletespaces
Enter a max string length: 20
Enter the string to delete whitespace from: a bcd ef g hi
Result: abcdefghi
1
Problem 2: matrixaddition.c
In this problem you will implement integer matrix addition. This will require you to dynamically allocate space for a 2 dimensional array. An example of matrix addition is:
In general, if A and B are matrices with the same number of rows and columns, then their sum C = A + B is defined by C[i][j] = A[i][j] + B[i][j]. Here, A[i][j] is the integer in the ith row and jth column of A. In the example above, A[1][1] = 1, A[1][3] = 3, and A[2][2] = 8.
This program has been partially written for you in matrixaddition.c. Write the body of functions that are marked with a comment that begins with
// Homework TODO: ...
Do not modify other parts of the code. Example output:
[rsgysel@pc17 \~]\$ ./matrixaddition Enter the number of rows and columns: 2 2 Enter matrix A:
Input row 0 elements, separated by spaces: 1 0
Input row 1 elements, separated by spaces: 0 1 Enter matrix B:
Input row 0 elements, separated by spaces: 2 2
Input row 1 elements, separated by spaces: 3 4
A + B =
3 2
3 5
[rsgysel@pc17 \~]\$ ./matrixaddition Enter the number of rows and columns: 3 6 Enter matrix A:
Input row 0 elements, separated by spaces: 1 2 3 4 5 6
Input row 1 elements, separated by spaces: 0 0 0 0 0 0 Input row 2 elements, separated by spaces: 10 5 23 84 91 2
Enter matrix B:
Input row 0 elements, separated by spaces: 9 8 7 6 5 4
Input row 1 elements, separated by spaces: 2 1 2 1 2 1
Input row 2 elements, separated by spaces: 14 83 62 93 45 32
A + B =
10 10 10 10 10 10
2 1 2 1 2 1
24 88 85 177 136 34
