Answer Posted / vijayalakshmi

There are four types of storage classes in c. It defines the
scope and lifetime of a variable or function.

1. auto - This is the default storage class. Auto can only
be used with in functions. i.e. only for local variables,
not for globals.

2. register - The variables declared using the register
storage class may stored in cpu registers instead of RAM.
Since it doesn't have a memory location, the '&' operator
for getting the address of the variable cannot be applied
(in C). This storage class cannot be used for global scope data.

3. static - This is the default storage class for global
variables. In case of local variable, it is initialized at
compile time and retains its value between the calls. By
default the static variables will be initialized to zero,
incase of pointer variable initialized to NULL.

4. extern - Defines the global variables that is visible to
all object modules. This type of variables cannot be
initialized, since it is pointing to a storage location,
where it is previously define.

What is the basic structure of c?

1080

---

What is strcpy() function?

1147

---

Explain how do you declare an array that will hold more than 64kb of data?

1452

---

Explain what is the purpose of "extern" keyword in a function declaration?

1073

---

i got 75% in all semester am i eligible for your company

2229

---

Is there a way to switch on strings?

1085

---

5 Write an Algorithm to find the maximum and minimum items in a set of ‘n’ element.

2109

---

What is a file descriptor in c?

1131

---

Combinations of fibanocci prime series

1611

---

What is 2 d array in c?

1024

---

What are pointers?

1108

---

What is getch() function?

1060

---

What is storage class?

1074

---

Is main is user defined function?

1147

---

A set of N billiard balls are set on a one-dimensional table. The table is 1 meter long, set north-south with two pockets at either side. Each ball has zero width and there is no friction so it is moving with a fixed velocity of either northward or southward and bounces back in a perfect elastic collision from other balls it encounter on its way (or drop into one of the pockets). Your job is to keep track of the balls movements. Task Please write a program that gets the initial place, speed and direction of all the balls and gives the position of a specific ball after t seconds. Input The first line contains the number of scenarios. Each one of the other lines in the input contains a scenario: The first number, N, is the number of balls; followed by N pairs of numbers: the distance in centimeters from the south end of the table and the speed (positive speed meaning it moves northward); the last two numbers are the number i of the target ball you should track and the time T in seconds. Output The output is a single number for each line which is the place (distance in centimeters from the south end of the table) of the tracked ball after T seconds. Note: There is no new line character at the end of the result. Sample Input 5 1 50 1 1 1000 1 50 1 1 6 1 60 -2 1 6 2 10 1 95 -1 2 30 2 10 1 95 -1 2 60 Sample Output 100 56 48 65 70

2676

---