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 typedef struct in c?

1042

---

What is the purpose of sprintf() function?

1110

---

How many types of arrays are there in c?

1036

---

What is the concatenation operator?

1144

---

Can we declare variable anywhere in c?

964

---

a character or group of characters that defines a register,or a part of storage a) memory b) byte c) address d) linear list

996

---

Explain what happens if you free a pointer twice?

1070

---

What is difference between union and structure in c?

1152

---

What is the purpose of the preprocessor directive error?

1262

---

void main(int n) { if(n==0) return; main(--n); printf("%d ",n); getch(); } how it work and what will be its output...............it any one know ans plz reply

2765

---

How many keywords are there in c?

1073

---

Explain what is the best way to comment out a section of code that contains comments?

1129

---

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

2060

---

hw can we delete an internal node of binary search tree the internal node has child node..plz write progarm

2015

---

What does c mean in standard form?

1168

---