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GAME -- Debug the Code !!

Question
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Hi guys ,
lets start a Technical game ...! The Rules are Simple ...
Rules :
1] Languages used : c , c++ , java, vb [ only debugging kind ]
2] If one member post any question , u should give the answer .
3] If You answered a Question , then post another question for other members .
Saturday, September 15, 2007 6:01 AM
Answers
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Hey....i'd guess 22...? Am not very good at c/c++ so am not sure if there are some hidden runtime/compiletime errors... but s'far as i know... while computing;
sum=(i++)+(++i);
it will first inc the value of i to 11;
so;
sum=11+(++i);
and it will inc the value of i to 12 AFTER it assigns the value of (11+11) to sum.....ie.22.....plz do let me know if im wrong....!! im here to l;earn...!!!!!!
VandanaSunday, September 16, 2007 3:35 AM
All replies
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q1]
What will be the o/p of this ?
Code Snippetvoid main()
{
int i=10,sum;
sum=(i++) + (++i);
printf("sum=%d",sum);
}Saturday, September 15, 2007 6:02 AM -
Hey....i'd guess 22...? Am not very good at c/c++ so am not sure if there are some hidden runtime/compiletime errors... but s'far as i know... while computing;
sum=(i++)+(++i);
it will first inc the value of i to 11;
so;
sum=11+(++i);
and it will inc the value of i to 12 AFTER it assigns the value of (11+11) to sum.....ie.22.....plz do let me know if im wrong....!! im here to l;earn...!!!!!!
VandanaSunday, September 16, 2007 3:35 AM -
@vandhana ... Your answer is right for Some Compilers ...
But the actual answer depends upon the Compiler ...
Sunday, September 16, 2007 8:47 AM -
the Next Qustion to debug !!
Code Snippetmain()
{
int a=0;
if(a && (a++ || a++));
printf("%d",a);
}Sunday, September 16, 2007 8:50 AM -
hi guys no one knows the answer ah ??Monday, September 17, 2007 6:07 AM
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output will be a=2Monday, September 17, 2007 3:00 PM
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Since a++ is called twice
the o/p is 2
Monday, September 17, 2007 4:07 PM -
you are right Guys !!!
Tuesday, September 18, 2007 8:33 AM -
The Next One ::
Code Snippetvoid main()
{printf("ans=%d",1/0);
}
wats the o/p ...
Tuesday, September 18, 2007 1:33 PM -
I think the answer will be a Runtime error: Division by Zero.
Now, for the previous question, isn't the answer 0? Since C follows lazy evaluation, it won't evaluate the right side of && once it finds that a is 0. This is because 'a' being 0, the && is anyway going to result in false. So C saves time by not evaluating right side of &&. So, the increments never happen, and 'a' remains unmodified...
I tried the code in Dev-C++ too. Only 0 was printed in this case. Any others got different answers?Tuesday, September 18, 2007 2:42 PM -
Next one !!!
Give the output of the program :
void main()
{
char *s="12345sn";
printf("%d",sizeof(s));
}Friday, September 21, 2007 5:27 AM -
the answer is 4
Friday, September 21, 2007 8:31 AM -
Sorry but you have got to be kidding me. All these quesitons are basically like 1+1 in the programming world. I had more difficult questions in my +2 (that is saying something). Some more competitive questions please? I love debugging
Friday, September 21, 2007 7:28 PM -
ok rahul .... This is for you !!
Code Snippet/* Mult.c */
int main ( int argc, char* argv[ ] )
{
int a[3], i, ret ;
if ( argc < 3 || argc > 3 )
{
printf ( "No arg...blah blah ") ;
exit ( 0 ) ;
}
for ( i = 1 ; i < argc ; i++ )
a = atoi ( argv ) ;
ret = a[1] * a[2] ;
return ret ;
}
Code Snippet/* Spawn.c */
#include
#include
main( )
{
int val ;
val = spawnl ( P_WAIT, "C:\\Mult.exe", "3", "10",
"20", NULL ) ;
printf ( "\nReturned value is: %d", val ) ;
}Saturday, September 22, 2007 2:51 AM -
Friday, October 19, 2007 3:07 AM
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A new challenge
Display the non Fibonacci series
Ex- 4 6 7 9 10 11 12 ..........................
Friday, October 19, 2007 8:02 AM