Write a program that asks the user to input a 3 X 3 matrix of integers, a row at
ID: 3782042 • Letter: W
Question
Write a program that asks the user to input a 3 X 3 matrix of integers, a row at a time
Be sure to identify which row is being requested:
Values:
Row #1: 8 7 9
Row #2: 6 3 12
Row #3: 5 0 10
When the whole matrix is filled, print it out in 3 X 3 matrix format in the console window
Pseudo code:
• <iostream> & namespace std
• Main:
o Out: Print my name
o Declare data types for 4 counters and the array
o Nested loop 1:
Out: asks user for value for row/column
In: variablename[counter1][counter2]
o Nested loop 2:
Out: variablename[counter3][counter4] & some space
Out: endl;
o Pause
o End program
Explanation / Answer
main.cpp
#include <iostream>
using namespace std;
int main()
{
int a[10][10], r, c, i, j;
cout << "Enter rows and columns of matrix: ";
cin >> r >> c;
// Storing element of matrix entered by user in array a[][].
cout << endl << "Enter elements of matrix: " << endl;
for(i = 0; i < r; ++i)
for(j = 0; j < c; ++j)
{
cout << "Enter elements a" << i + 1 << j + 1 << ": ";
cin >> a[i][j];
}
// Displaying the matrix a[][]
cout << endl << "Entered Matrix: " << endl;
for(i = 0; i < r; ++i)
for(j = 0; j < c; ++j)
{
cout << " " << a[i][j];
if(j == c - 1)
cout << endl << endl;
}
return 0;
}
Output:-
Enter rows and columns of matrix: 3
3
Enter elements of matrix:
Enter elements a11: 8
Enter elements a12: 7
Enter elements a13: 9
Enter elements a21: 6
Enter elements a22: 3
Enter elements a23: 12
Enter elements a31: 5
Enter elements a32: 0
Enter elements a33: 10
Entered Matrix:
8 7 9
6 3 12
5 0 10
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