Deepak

This is actually type casting.

Type casting in c is done in the following form:

(data_type)expression;

where, data_type is any valid c data type, and expression may be constant, variable or expression.

For example,

Use pointer.

#include<stdio.h>

#include<string.h>

data_type function_name (char *s)

{//write your code.}

int main()

{char *str1;

char str2[size];

scanf("%s",str1);

scanf("%s",str2);

data_type var1 = function_name(str1);

data_type var2 = function_name(str2)return 0;

// C program to rotate a matrix by 180 degrees
#include <stdio.h>
#define N 3

// Function to Rotate the matrix by 180 degree
void rotateMatrix(int mat[][N])
{
// Simply print from last cell to first cell.
for (int i = N - 1; i >= 0; i--) {
for (int j = N - 1; j >= 0; j--)
printf("%d ", mat[i][j]);

printf("\n");
}
}

// Driven code
int main()
{
int mat[N][N] = {
{ 1, 2, 3 },
{ 4, 5, 6 },
{ 7, 8, 9 }
};

rotateMatrix(mat);
return 0;
}