Answer Posted / kuldeep

the value of x is 2

Write programs for String Reversal & Palindrome check

1061

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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

2678

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What are the primitive data types in c?

1077

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Can a variable be both const and volatile?

1132

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What is data structure in c language?

1112

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Explain what are the standard predefined macros?

1119

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What is the meaning of c in c language?

1167

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Explain what is the advantage of a random access file?

1124

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using only #include and #include Write a program in C that will read an input from the user and print it back to the user if it is a palindrome. The string ends when it encounters a whitespace. The input string is at most 30 characters. Assume the string has no spaces and distinguish between and lowercase. So madam is a palindrome, but MadAm is not a palindrome. Use scanf and %s to read the string. Sample Test: Enter a string: madam madam is a palindrome. Enter a string: 09023 09023 is not a palindrome.

1812

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Explain the properties of union.

1087

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Why we use break in c?

1014

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printf(), scanf() these are a) library functions b) userdefined functions c) system functions d) they are not functions

1160

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What is a substring in c?

1034

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Is it better to use a pointer to navigate an array of values, or is it better to use a subscripted array name?

1088

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Explain what’s a signal? Explain what do I use signals for?

1163

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