What is a 'null pointer assignment' error?

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Write a function expand(s1,s2) that expands shorthand notations like a-z in the string s1 into the equivalent complete list abc...xyz in s2 . Allow for letters of either case and digits, and be prepared to handle cases like a-b-c and a-z0-9 and -a-z. z-a:zyx......ba -1-6-:-123456- 1-9-1:123456789987654321 a-R-L:a-R...L a-b-c:abbc

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How can I find out if there are characters available for reading?

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please give me answer with details #include<stdio.h> main() { int i=1; i=(++i)*(++i)*(++i); printf("%d",i); getch(); }

3 Answers  

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write a program to find the frequency of a number

4 Answers   Infosys,

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Dont ansi function prototypes render lint obsolete?

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In a byte, what is the maximum decimal number that you can accommodate?

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How to Clear last bit if it 1 using Macro TURN_OFF_BIT_LAST

6 Answers   Adobe, Huawei,

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Write a main() program that calls this function at least 10 times. Try implementing this function in two different ways. First, use an external variable to store the count. Second, use a local variable. Which is more appropriate?

2 Answers  

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What is the difference between char array and char pointer?

0 Answers  

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Explain indirection?

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What is calloc in c?

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