Answer / sneh nagaonkar

/*Program to takes the the data of a 3x3 matrix and check if the given matrix is magic

square or not*/
#include <stdio.h>
#include <conio.h>
int num[3][3];
int sum[8];
int r,c,i;

/*Function to take the value in matrix from user*/
void read_matrix()
{
for(r=0;r<3; r++)
{
for(c=0;c<3; c++)
{
printf("Enter value for %d %d::",r,c);
scanf("%d",&num[r][c]);
}
}
}

/*Function to print matrix and get the sum of rows,cols and diaglons*/
void print_calc_rows_cols()
{
int sum_row,sum_col,ctr=0;

/*Print the Matrix and get the sum of rows*/
for(r=0;r<3; r++)
{
sum_row=0;
for(c=0;c<3; c++)
{
printf("\t%d",num[r][c]);
sum_row=sum_row+num[r][c];
}
sum[ctr]=sum_row;
ctr++;
printf(":: %d",sum_row);
printf("\n");
}
printf("\t::\t::\t::\n");

/*Get the sum of columns*/
for(c=0;c<3;c++)
{
sum_col=0;
for(r=0;r<3;r++)
sum_col=sum_col+num[r][c];

sum[ctr]=sum_col;
ctr++;
printf("\t%d",sum_col);
}
printf("\n");

/*Get the sum of diagnols*/
sum[6]=num[0][0]+num[1][1]+num[2][2];
sum[7]=num[0][2]+num[1][1]+num[2][0];

}

/*Function to Check the sum of rows,cols and diagnols*/
char check_matrix()
{
char c;
for(i=0;i<3; i++)
{
if(sum[i]==sum[i+1])
c='y';
else
{
c='n';
break;
}
}
return c;
}

void main()
{
char c;
clrscr();
read_matrix();
print_calc_rows_cols();
c=check_matrix();


/*Print the result*/
if(c=='y')
printf("\nThis Matrix is a Magic Square");
else
printf("\nThis Matrix is Not a Magic Square");

getch();
}

swap prog

3 Answers   TCS,

---

Write a simple encryption program using string function which apply the substitution method.

0 Answers  

---

write a function that reverse the elements of an array in place.The function must accept only one pointer value and return void.

0 Answers   HCL, SRCASW,

---

readers and writers problem

1 Answers   Cognizant,

---

3. Program to find the Sum of give series. a. (1)+(1+2)+(1+2+3)+(1+2+3+4)+……………………………….. b. 1/1+1/9+1/25+1/49+……………...

0 Answers  

---

write a program in c++ to scramble a bmp image file using a scramble key 0x7c and an XOR logic. print out the original image, the scrambled image and the program. Note: the first 24bytes of a bmp file contain the header information of the file.

1 Answers  

---

write a program to perform generic sort in arrays?

0 Answers  

---

write a function – oriented program that calculates the sum of the squares from 1 to n. thus, if the input is 3, the output is 14

3 Answers  

---

how to write a program that opens a file and display in reverse order?

0 Answers   SMC,

---

using repetition structure. Write a c program that will accept five numbers. The program should count and output the total count of even numbers and total count of add numbers.

2 Answers  

---

Here's the programm code: int magic(int a, int b) { return b == 0 ? a : magic(b, a % b); } int main() { int a, b; scanf("%d%d", &a, &b); printf("%d\n", magic(a, b)); return 0; } on input stream we have integers 4, 45 What's the output integer? How many times will be initiated "magic" function?

1 Answers  

---

What output does the following code generate? Why? What output does it generate if you make A::Foo() a pure virtual function? class A { A() { this->Foo(); } virtual void Foo() { cout << "A::Foo()" << endl; } }; class B : public A { B() { this->Foo(); } virtual void Foo() { cout << "A::Foo()" << endl; } }; int main(int, char**) { A objectA; B objectB; return 0; }

0 Answers  

---