Answer Posted / chetan kole

m1=(y2-y1)/(x2-x1);
m2=(y3-y2)/(x3-x2);
if(m1==m2)
{
printf("3 points are on same line")
}
else
{
printf("not on same line");
}

Explain what is the difference between null and nul?

1170

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#include main() { enum _tag{ left=10, right, front=100, back}; printf("left is %d, right is %d, front is %d, back is %d",left,right,front,back); }

1128

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Is there any demerits of using pointer?

1080

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Why do we need arrays in c?

1167

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Is it fine to write void main () or main () in c?

1039

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What are type modifiers in c?

1063

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What is a pragma?

1137

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In C programming, what command or code can be used to determine if a number of odd or even?

1072

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Why c is called a middle level language?

1121

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What is the difference between the expression “++a” and “a++”?

1241

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What does the characters “r” and “w” mean when writing programs that will make use of files?

1488

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Write a C Program That Will Count The Number Of Even And Odd Integers In A Set using while loop

2170

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What is a macro, and explain how do you use it?

1091

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Explain the difference between the local variable and global variable in c?

1084

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Differentiate between functions getch() and getche().

1060

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