C Programming - Expressions - Discussion

Hi Sunil your logic is totally wrong.......

Follow this
This is if else statement in Conditional operator. ? means if & : means else
num = 30;
k = (num > 5 ?(if) (num <= 10 ? 100 : 200): 500);//Question

If condition will true it will take 1st following value

k = (num <=10 ? 100 : 200); // First Step

If condition will not true it will take following value

K = 500;

Final result will not come in First step. So you come in second step & in this step apply same rule with the value of num

k = (num <=10 ? 100 : 200);(Here again apply if & else condition)
.'. num = 30;

So K = 200; Ans

Hope you will try to understand.

Hi Krishna,

? means if & : means else.

There is some magic in the question. So don't calculate for k. May be any thing the value will store in k You have no need of that value. So leave that function. The value of num is already assigned in the program. So simply you have to print that value.

So x = 30 correct ans.

Dear Sir,

According to your problem resolve, It could not be:

k = (num>5 ? (num <=10 ? 100:200):500).

Given.

k = (num>5 ? (num <=10 ? 100:200):500);

Answer : 30.

Actual answer : 30 (but expression error available).

#include <stdio.h>

int main() {
int a=400,b=700;
if(!a<=500)
{

b=80;
c=90;

printf("%d %d",b,c);
}
return 0;
}

How does the condition works with a works? Can u please help me?

@Purni.

z >= condition?if condition is true pick 100: else 200.

Now, putting values.
z >= 4 >= 4?100:200 ///condition is true.
z >= 100.,
4 >= 100. // its false.

Ans is 0.

Ternary operators work like this:

int a,b,c;

a = (condition) ? value if true : value if false;

In this example there is a nested ternary operation, but the question was tricky.

@Thirupathi.
Skip this statement k = (num>5 ? (num <=10 ? 100 : 200) : 500) ;
Because we have to print the value of num not the value of k.
So it will print num=30.
Thanks.

k = (num>5 ? (num <=10 ? 100 : 200): 500);
here (num <=10 ? 100 : 200) evaluated first o/p=200
hence
k = (num>5 ? 200: 500);
30>5
so ans will be 200

@ sunil:

Here the question is regarding the value of 'num'.

You are correct in the sense of value 'k'.

Hope u can understand it.....

We are printing only num value i.e. num = 30 in the program, not k value!. Don't consider about expression. It may be true or false.