what will happen if you free a pointer twice after
allocating memory dynamically ?
Answer Posted / zan
segmentation fault
| Is This Answer Correct ? | 19 Yes | 10 No |
Post New Answer View All Answers
How do you convert a decimal number to its hexa-decimal equivalent.Give a C code to do the same
What is difference between array and pointer in c?
What is the meaning of typedef struct in c?
what is different between auto and local static? why should we use local static?
Explain how do I determine whether a character is numeric, alphabetic, and so on?
What is a constant and types of constants in c?
Why do we need functions in c?
What is the difference between array and linked list in c?
What is pointers in c?
Is it possible to initialize a variable at the time it was declared?
This is a variation of the call_me function in the previous question:call_me (myvar)int *myvar;{ *myvar += 5; }The correct way to call this function from main() will be a) call_me(myvar) b) call_me(*myvar) c) call_me(&myvar) d) expanded memory
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
What does 3 periods mean in texting?
What is the difference between mpi and openmp?
What are the disadvantages of c language?