Question

C Thank You for You x Home - OwNet x B Assignment 401 X CPP-A01 - Dynam x ASM-103 - Intege X ASM-A03 - Integex Calculus - Find voll x D (10) Disc method X + -ox + → C onedrive.live.com/view.aspx?resid-322690C11EFFEB37!1631&ithint-file%2cdocxêauthkey-!AOJByR3MAP202A Word Sign in OneDrive CPP-A01 - Dynamic Multiplication Table Accessibility Mode Download Save to OneDrive Print ... When completing this assignment, the student should demonstrate mastery of the following concepts: • Visual Studio Project Creation • C++ Formatted Output (cout, setw(), etc...) • C++ Input (cin) • Variables (int, char, float, double, etc..) Decision Making (if, else) Looping/Iteration (for, while) • Simple Input Validation • Simple Console User Interface Construction • Nested Loops • Dynamie Memory • Double Pointers (int **) Assignment Write a program that displays a 20 multiplication table based on row and column value specified by the user. Perform a data validation to ensure the number of rows and columns given by the user exist on the interval [1, 10). If possible, protect against inputs that contain symbols that would normally crash the program (i.e. letter, symbols, numbers containing a decimal point, etc..). The multiplication table should line up in an aesthetically pleasing manner and mimic the format illustrated in the provided screen shots Example #1 Windowode Please enter a number of columns on the 1 Latit 21 31 41 SI E 21 21 41 6 ai 101 12 Latit 91 121 151 18 Press any key to continue... PAGE 1 OF 3 GIVE FEEDBACK TO MICROSOFT 100%

Answer 1

Hi,

Please refer screenshots for more clarity..

I've used double pointer and setw for setting width for printing in this code.. Please go through it..

C++ code:

//program starts here..

#include <iostream>
#include<stdlib.h>
#include<iomanip>
using namespace std;

int main() {
int row,col;
while(1)//while for validation
{
cout << "please enter the rows in the range of [1 to 10]:";
cin >> row;
if(row >= 1 && row <= 10)
break;
else
cout << "input not within the range[1 to 10]. Please Try again.." << endl;
}

while(1)//column validation
{
cout << "please enter the rows in the range of [1 to 10]:";
cin >> col;
if(col >= 1 && col <= 10)
break;
else
cout << "input not within the range[1 to 10]. Please Try again.." << endl;
}
int **arr = (int **)malloc(row * sizeof(int *));//allocating memory with row's size
//for each row one pointer
for(int i =0 ; i < row ; i++)
{
arr[i] = (int *)malloc(col * sizeof(int));//pointer to ith row ..
}
for(int i = 1 ; i <= row ; i++)
{
for(int j = 1; j <= col ; j++)
{
arr[i-1][j-1] = i*j;//multiplication and storing in 2D array
}
}
for(int i = 1; i <= col; i++)
{
cout << setw(3)<< " |" << i ;//setting width for each value and printing it
}
cout << endl;
for(int x = 1; x < col; x++)
{
cout << "-----*";
}
cout << endl;

for(int i = 0 ; i < row ; i++)
{
cout <<left <<setw(3) << i+1 ;//each row value
for(int j = 0; j < col ;j++)
{
cout <<"|" << setw(3)<< arr[i][j] ; //multiplication value
  
}
cout << endl;
for(int x = 1; x < col; x++)
{
cout << "-----*";//after each row, separator
}
cout << endl;
}
}

//End of the program

main.cpp saved #include <iostream> #include<stdlib.h> 3 #include<iomanip> using namespace std; int main() { int row,col; while(1)//while for validation cout << "please enter the rows in the range of [1 to 10]:"; cin >> row; if(row >= 1 && row <= 10) break; else cout << "input not within the range [1 to 10]. Please try again.." << endl; while(1)//column validation cout << "please enter the rows in the range of [1 to 10]:"; cin >> col; if(col >= 1 && col <= 10) break; else cout << "input not within the range[1 to 10). Please try again.." << endl; int **arr = (int **)malloc(row * sizeof(int *));//allocating memory with row's size // for each row one pointer for(int i =0; i< row ; i++) arr[i] = (int *) malloc(col * sizeof(int));//pointer to ith row .. for(int i = 1; i <= row ; i++) for(int j = 1; j <= col ; j++) arr[i-1][j-1] = i*j;//multiplication and storing in 2D array

for(int i = 1; i <= col; i++) 41 E cout << setw(3)<< " 1" «i ;//setting width for each value and printing it 43 cout << endl; for(int x = 1; x< col; x++) 46 E cout << endl; for(int i = 0; i < row ; i++) 52 cout <<left <<setw(3) << i+1 ;//each row value for(int j = 0; j <col ; j++) cout <<"\" «< setu(3)<< arr[i][j]; //multiplication value cout << endl; for(int x = 1; x < col; x++) cout << "----*";//after each row, separator cout << endl; 65 66 } }

} ./main please enter the rows in the range of [1 to 10]:5, please enter the rows in the range of [1 to 10]:5 11 12 13 14 15 1 11 12 13 14 15 2 12 14 16 18 110 3 13 16 19 112 115 5 15 110 115 120 125 } ./main please enter the rows in the range of [1 to 10]:7 please enter the rows in the range of [1 to 10]:7 11 12 13 14 15 16 17 1 11 12 13 14 15 16 17 2 12 14 16 18 110 112 114 3 13 16 19 112 115 118 121 5 15 110 115 120 125 130 135 6 16 112 118 124 130 136 142 7 17 14 121 128 135 142 149 - - ----

} ./main please enter the rows in the range of [1 to 10]:-3, input not within the range[1 to 10]. Please Try again.. please enter the rows in the range of [1 to 10]:22 input not within the range [1 to 10). Please Try again.. please enter the rows in the range of [1 to 10]:6 please enter the rows in the range of [1 to 10]:-3 input not within the range[1 to 10]. Please Try again.. please enter the rows in the range of [1 to 10):3 11 12 13 ---- 1 11 12 13 2 12 14 16 3 13 16 19 4 14 18 112 5 15 110 115 6 16 112 118 -----

If you have any doubts, please feel free to comment below..

Thank you..