Turbo C | Weird and amazing

[prateek]

Why the output of the following program comes False

#include<stdio.h>
void main()
{
int a=15, b=10, c=5;
if(a>b>c)
printf("True");
else
printf("False");
} 

plzz tell me ... help needed

prateek Reviewed by prateek on 11th Feb 2012. Turbo C | Weird and amazing Why the output of the following program comes False #include<stdio.h> void main() { int a=15, b=10, c=5; if(a>b>c) printf("True"); else printf("False"); Rating: 5

[t3od0r]

i don't know c but i don't think is possible to compare 3 values at once
maybe a>b and a>c and b>c

[prateek]

i don't know c but i don't think is possible to compare 3 values at once
maybe a>b and a>c and b>c

oh but

but when I write
if(a>b>>c)
the output becomes true ??

whyy ??

[Techking]

Why the output of the following program comes False

#include<stdio.h>
void main()
{
int a=15, b=10, c=5;
if(a>b>c)
printf("True");
else
printf("False");
} 

plzz tell me ... help needed

because in below statement,the compiler(parser) see...
a>b>c as ((a>b)>c)
so ,if a=15,b=10,c=5
a>b ==> true (returns 1)
now 1 > 5 (c) ==> false

Therefore , compiler returns false .The concept of left associativity .

[Froomple]

the whole concept of your program is wrong, how can you compare values without getting an input from an user and claim it as true or false ?
If you get an input from an user, and ask for "true or false", that has some sense. If you get my point and agree with what i say, then this must be the program :

#include<stdio.h> 
void main() 
{ 
int a,b,c; 
scanf(%d %d %d, &a, &b, &c);
if(a>b&&a>c)
printf("True"); 
else 
printf("False"); 
}

If its "greatest of 3 numbers, then the program would be :

#include<stdio.h> 
void main() 
{ 
int a,b,c; 
scanf(%d %d %d, &a, &b, &c);
if(a>b&&a>c)
printf("A is Big"); 
else 
if(b>c)
printf("B is Big"); 
else
printf("C is Big");
}

any doubts ? feel free to reply

[Techking]

oh but

but when I write
if(a>b>>c)
the output becomes true ??

whyy ??

because ,

again
a>b ==> true (return 1)
1>>5 ==> right shift "1" to five times
return non-zero value and therefore any equality/operational expression is true by default..

[prateek]

Froomple

actually my exam is next week
i got some previous year questions and tried to solve them
and found this question

the question was what was the output of the program ..


thanks to all of you epecially Techking
rep added for all


edit
techking
i can't give rep to u
You must spread some Reputation around before giving it to Techking again.

[Froomple]

Froomple

actually my exam is next week
i got some previous year questions and tried to solve them
and found this question

the question was what was the output of the program ..


thanks to all of you epecially Techking
rep added for all

can you type me the question please ?

[Techking]

We can do anything in C ?
for more advanced interesting puzzles specially for microsoft/google interviews ,you can go with
http://www.techmantr.in/c.php

[Techking]

PM me too..
always welcome ..