Answer Posted / pavan_mustyala

Method1:
optimised code is to "left shift" the number 7 by 3 times.

Reason: 8 is (2 raised to power 3). So (7 * 8) is
equivalent to (((7*2)*2)*2). To multiply a number by 2,
shift it by 1 bit Left.

Method2:
Not optimised but it works. Addition in a loop.

int func()
{
int i;
int result = 0;

for(i = 0; i < 8; i++)
{
result = result + 7;
}
return result;
}

What is the difference between text and binary modes?

1239

---

What is far pointer in c?

1388

---

write a c program to find the sum of five entered numbers using an array named number

2203

---

How many keywords are there in c?

1123

---

Why is it important to memset a variable, immediately after allocating memory to it ?

2131

---

What would happen to X in this expression: X += 15; (assuming the value of X is 5)

2018

---

please send me the code for multiplying sparse matrix using c

2222

---

How is a macro different from a function?

1243

---

How do I get an accurate error status return from system on ms-dos?

1175

---

Can a void pointer point to a function?

1076

---

How arrays can be passed to a user defined function

1069

---

What is the explanation for modular programming?

1269

---

Explain zero based addressing.

1096

---

write a c program to calculate sum of digits till it reduces to a single digit using recursion

3380

---

What happens if header file is included twice?

1211

---