## shivamsinha 3 years ago hey pplll.plz help me with this one .........1-d

1. shivamsinha

2. ndani14

What's the main problem you're having?

3. shivamsinha

find the answwer of 1-d

4. ndani14

void calc(int &a, int b) { cout << a << "\t" << b << endl; a = b++; b = a++; cout << a << "\t" << b << endl; } void main() { int x = 5; calc(x++, ++x); cout << x << endl; } that one?

5. shivamsinha

yes...

6. shivamsinha

i know this is easy ques...but i suck in c++ coz f ma tchr

7. ndani14

it's a pretty tricky questions =P so when the program enters calc what would the values and a and b be?

8. shivamsinha

no idea,...

9. ndani14

so to begin with x = 5 when you call calc(x++, ++x) x will be incremented before the function and after x = 6 calc effectively gets called with a = 6 and b = 6 this is before a is a reference of x so the first output would be 6 6

10. ndani14

make sense?

11. shivamsinha

it does.....

12. shivamsinha

i suppose u r right

13. ndani14

awesome do you think you could do the rest now or still a little stuck?

14. shivamsinha

and the second part..

15. shivamsinha

7 8 ?

16. shivamsinha

17. ndani14

almost a = b++; // b is 6 so now a and x are 6, remember this is a post increment b = a++; // a is 6 so now b is 6 and a and x are 7 So the output should be 7 6

18. shivamsinha

okiezz..thanks...and can u answer 1e and 1f

19. shivamsinha

plzz???

20. ndani14

I can't read all of 1e

21. shivamsinha

i've attached anotherfile...c above

22. shivamsinha
23. ndani14

ok i see now, with 1f you have x = 725 y = 245 a is between 4 and 6 (i'm assuming the random function returns [0, n) ) b is between 2 and 3 do you think you could do this one now?

24. shivamsinha

i said naa.....my c++ 'll improve only aftr a month....oz now i 've joined a coaching class....so plz help me today...:(

25. ndani14

for 1f the answer would be a) and 1e the first for loop is working out the length of the string. c strings are terminated by a '\0' the second loop is looping from 0 to the middle of the word and if statement is looking for capital A's and E's since there are no A's or E's in the first half this wont ever happen and in the else it's swapping characters, eg first with last, second with second last etc so the result would be a word that is reversed if it doesn't have any A's or E's in the first half of the word PreboardExam would become maxEbraoberP

26. ndani14

hopefully that all makes sense good luck with the c++ =)

27. shivamsinha

tnx a lot...:)