```
#include <iostream.h>
main()
{
int n, k = 5;
n = (100 % k ? k + 1 : k - 1);
cout << "n = " << n << " k = " << k << endl;
return 0;
}
```

How the value of n become "4" ?

n=4

k=5

Zay
4
Junior Poster in Training

```
#include <iostream.h>
main()
{
int n, k = 5;
n = (100 % k ? k + 1 : k - 1);
cout << "n = " << n << " k = " << k << endl;
return 0;
}
```

How the value of n become "4" ?

n=4

k=5

Jump to PostLook at modulo (%) operator and conditional operator.

Conditional operator execute k+1 if an expression 100%k evalutes non-zero. A result of an expression 100%k is 0 (zero) so an expression k-1 will be executed.

Jump to Post`#include <iostream.h> main() { int n, k = 5; n = (100 % k ? k + 1 : k - 1); cout << "n = " << n << " k = " << k << endl; return 0; }`

How the value of n become "4" …

kvprajapati
1,826
Posting Genius
Team Colleague

Look at modulo (%) operator and conditional operator.

Conditional operator execute k+1 if an expression 100%k evalutes non-zero. A result of an expression 100%k is 0 (zero) so an expression k-1 will be executed.

csurfer
422
Posting Pro

`#include <iostream.h> main() { int n, k = 5; n = (100 % k ? k + 1 : k - 1); cout << "n = " << n << " k = " << k << endl; return 0; }`

How the value of n become "4" ?

n=4

k=5

Hey your code line 1 says

`n = (100 % k ? k + 1 : k - 1);`

here the right hand side is a conditional statement which has format

(<condition>) ? (<if result is not 0 execute this>) : (<else execute this>);

So here it checks what is 100 % k,which is 100 % 5 here which is 0 so it needs to execute the second statement, and second statement is k -1 so here 5 -1 that is 4 gets assigned to n.

Hey sorry adatapost !!! Slow loading problem.

jencas

`n = (100 % k ? k + 1 : k - 1);`

is the same as

```
if (100 % k != 0)
n = k + 1;
else
n = k - 1;
```

The operator %(int a, int b) returns the remainder of the integer division of a and b. See also http://en.wikipedia.org/wiki/Modulo_operator

Zay
4
Junior Poster in Training

Oh Thank you very much all of U

i got it now

what delicious C++ is !

kvprajapati
1,826
Posting Genius
Team Colleague

Oh Thank you very much all of U

i got it now

what delicious C++ is !

Thanks. Mark this thread as a Solved if you got solution.

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