C Programming
What will be the output?void main(){ int a=10, b=20; char x=1, y=0; if(a,b,x,y){ printf("EXAM"); } }

Nothing is printed
exam is printed
Compiler Error
XAM is printed

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C Programming
What is the difference between a declaration and a definition of a variable?

Both can occur multiple times, but a definition must occur first.
A declaration occurs once, but a definition may occur many times.
There is no difference between them.
A definition occurs once, but a declaration may occur many times.
Both can occur multiple times, but a declaration must occur first.

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