Answer Posted / mahesh auti

#include<stdio.h>
#include <string.h>

char * reverse (char *); //function prototype
int length(char *); //function prptotype

void main()
{
int i;
char *str, *rev;
clrscr();
gets(str);
strcpy(rev,reverse(str));

printf("Original %s Reverse %s", str, rev);
free(str);
free(rev);
getch();
}

int length(char *s)
{
int i;
for (i=0; *(s+i)!='\0' ; ++i);
return i;
}

char *reverse(char *s)
{
char *t;
int i, n;
n=length(s);
for (i=0; i<n; ++i)
{
*(t+i)=*(s+n-1-i);
}
*(t+i)='\0';
printf("\nOUT: %s\n", t);
return t;
}

1234554321 1234 4321 123 321 12 21 1 1 12 21 123 321 1234 4321 1234554321

3728

---

How macro execution is faster than function ?

1197

---

Tell us bitwise shift operators?

1095

---

Explain how can you check to see whether a symbol is defined?

1203

---

Function which gives a pointer to a binary trees const an integer value at each code, return function of all the nodes in binary tree.?

1073

---

Why is c fast?

1069

---

What are lookup tables in c?

1005

---

What are the Advantages of using macro

1177

---

Who invented bcpl language?

1198

---

If I have a char * variable pointing to the name of a function ..

1173

---

why return type of main is not necessary in linux

2110

---

How does placing some code lines between the comment symbol help in debugging the code?

1003

---

What is use of #include in c?

1170

---

What will the code below print when it is executed?   int x = 3, y = 4;         if (x = 4)                 y = 5;         else                 y = 2;         printf ("x=%d, y=%d ",x,y);

1885

---

Want to know how to write a C program that connects to a MySQL server and checks if the InnoDB plug-in is installed on it. If so, your program should print the total number of disk writes by MySQL.

2060

---