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C programs QnA

Q. If sum of two integer is 14 and if one of them is 8 then find other integer. Ans: Well, this is very simple. Simply, one integer is 8 and sum of two integers is 14. So, we need to subtract the number 8 from their sum of 14 to get the second number. So, the second number is: 14 - 8 = 6 C-Program of this task Code---> #include<stdio.h> int main () { int num1 = 8 , num2 , sum = 14 ; num2 = sum - num1 ; printf ( "The second number is: %d" , num2 ); return 0 ; }
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Matrix representation using 2D array in C Language



In this C program we will represent a Matrix. The elements or data will be taken from the user. First we input row 1 from left to right then the next row (row 2) and then the next row and so on. Well, in this case we representing a 3 X 3 Matrix, so here is only three rows.

input:

The elements of the Matrix.

output:

The formed Matrix.

CODE---->


#include<stdio.h>
int main()
{
	int arr_data[3][3],i,j=0,k=1;
	for(i=0;i<3;i++)
	{
		printf("For Row %d\n",k);
		for(j=0;j<3;j++)
		{
			printf("Enter data: ");
			scanf("%d",&arr_data[i][j]);
		}
		k++;
	}
	printf("\nNow the Matrix is: \n\n");
	for(i=0;i<3;i++)
	{
		for(j=0;j<3;j++)
			printf(" %d ",arr_data[i][j]);
		printf("\n");
	}
	return 0;
}

Download the C-Program file of this Program.

Don't just read, run on your pc !!!

RESULT :


For Row 1
Enter data: 10
Enter data: 20
Enter data: 30
For Row 2
Enter data: 40
Enter data: 50
Enter data: 60
For Row 3
Enter data: 70
Enter data: 80
Enter data: 90

Now the Matrix is:

 10  20  30
 40  50  60
 70  80  90

--------------------------------
Process exited after 18.82 seconds with return value 0
Press any key to continue . . .


Images for better understanding :

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