This program takes command line arguments declaring the size of the two matrices and then reads in user input to fill the matrices before multiplying them.
./a.out M1_NUM_ROWS C1_NUM_COLS M2_NUM_ROWS M2_NUM_COLS
M1_NUM_ROWS
is the first matrix's amount of rows.M1_NUM_COLS
is the first matrix's amount of columns.M2_NUM_ROWS
is the second matrix's amount of rows.M2_NUM_COLS
is the second matrix's amount of columns.