Answer Posted / senthil

char num[10];

printf ("Enter the number: ");
gets(num);
printf("Entered number = %s\n", num);

if (strlen(num) != 4) // check for 4 digit including NULL
{
printf("Error: number not 4 digit");
}
else
{
printf("\ndifference = %d", (num[0]&0x0F) - (num[1]&0x0F) - (num[2]&0x0F) - (num[3]&0x0F));
}

How do we open a binary file in Read/Write mode in C?

1242

---

What are called c variables?

1068

---

What is an array? What the different types of arrays in c?

1189

---

Explain what will be the outcome of the following conditional statement if the value of variable s is 10?

1252

---

Can a pointer be volatile in c?

993

---

What is the deal on sprintf_s return value?

1139

---

Are local variables initialized to zero by default in c?

1053

---

What is difference between main and void main?

1215

---

What is main () in c?

1078

---

Why is main function so important?

1108

---

hi... can anyone help me to make a two-dimensinal arrays in finding the sum of two elements plzzz. thnx a lot...

1919

---

how to find anagram without using string functions using only loops in c programming

3195

---

What is string in c language?

1162

---

What are shell structures used for?

1055

---

What are the header files used in c language?

1055

---