Answer Posted / vikas patel

/*A program to compare of string */
#include<stdio.h>
#include<conio.h>
str_len1(char *s);
str_len2(char *p);
void main()
{
char arr1[20];
char arr2[20];
int len1,len2;
clrscr();
printf("\nEnter the frist string -> ");
scanf("%s",arr1);
printf("\nEnter the second string -> ");
scanf("%s",arr2);
len1 = str_len1(arr1);
len2 = str_len2(arr2);
if(len1==len2)
{
printf("Both string is equal");
}
else
{
printf("Both string is not equal");
}
getch();
}
str_len1(char *s)
{
int length = 0;
while(*s != '\0')
{
length++;
s++;
}
return(length);
}
str_len2(char *p)
{
int a = 0;
while(*p != '\0')
{
a++;
p++;
}
return(a);
}

Create a simple code fragment that will swap the values of two variables num1 and num2.

1237

---

Explain the difference between strcpy() and memcpy() function?

949

---

Difference between Function to pointer and pointer to function

1019

---

When is a void pointer used?

1192

---

Can a pointer be null?

975

---

What is %s and %d in c?

973

---

What is c preprocessor mean?

1242

---

Why is not a pointer null after calling free?

969

---

Write the program that calculates and prints the average of several integers. Assume that the last value read is sentinel 9999.

3636

---

write a c programming using command line argument,demonstrate set operation(eg;union,intersection,difference) example output is c:>setop 12 34 45 1 union 34 42 66 c:>setop 12 34 1 42 66 c:>setop 12 34 diff 12 56 67 78 setop 12 34

2108

---

How can I discover how many arguments a function was actually called with?

1019

---

What’s the special use of UNIONS?

1106

---

Can two or more operators such as and be combined in a single line of program code?

1310

---

What is maximum size of array in c?

991

---

What is identifiers in c with examples?

1118

---