Answer Posted / prakash.m

phases in SDLC

The phases may be diffred for different SDLC models.
some of the SDLC are

waterfall model(all requirements must be collected in the
first phase itself)
spiral model(processing looks like a spiral fashion,the
desired requirements can be added in next level spirals)
incremental model
prototype model

Stack and queue are data structures. stack is referred as
Last In First Out(LIFO), uses a single pointer
queue is First In First Out(FIFO), uses 2 pointers , one
for insertion and another for deletion.

stack is used for all arithmatic operations, eg. polynomial
addition.

How can I implement sets or arrays of bits?

606

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How many identifiers are there in c?

581

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Why doesnt that code work?

600

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What is the use of a semicolon (;) at the end of every program statement?

772

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What is the argument of a function in c?

573

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Do pointers store the address of value or the actual value of a variable?

610

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Why void is used in c?

565

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Is int a keyword in c?

556

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Explain what is #line used for?

608

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What is assignment operator?

625

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What is infinite loop?

629

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What is scanf () in c?

662

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#include int main(){ int i=10; int *ptr=&i; *ptr=(int *)20; printf("%d",i); return 0; } Output: 20 can anyone explain how came the output is 20

1263

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Write a program to swap two numbers without using a temporary variable?

609

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What is structure pointer in c?

571

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