C Programming
What will be the output of the given program?#includevoid main(){ int i=10; printf("i=%d", i); { int i=20; printf("i=%d", i); i++; printf("i=%d", i); } printf("i=%d", i);}

10 10 11 11
10 20 21 10
10 20 21 20
10 20 21 21

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C Programming
Use of functions

Makes the debugging task easier.
Enhances the logical clarity of the program.
Helps to avoid repeating a set of statements many times.
All of these
Helps to avoid repeated programming across programs.

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C Programming
A preprocessor command

has # as the first character
need not start on a new line
comes before the first executable statement
need not start on the first column

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