kitkat

i clicked on a link to a chatroom in a yahoo chatroom and after 2 days my laptop stopped functioning.as soon as it starts and i click on something,it gets hang.i aint sure if this is because of that link or there is some other problem.what do u think?

also

http://in.answers.yahoo.com/question/index;_ylt=Av...

also,what do u do?

1)Everyone doesn't know everything.

2)John flew to New York.

pascal,C,fortran 77,ada,lisp

also,what is the input alphabet of each of these languages?

1)write a lex program that copies a file,replacing each nonnull sequence of white space by a single blank.

2)what is the input alphabet of the languages pascal,ada,lisp and fortran 77?

at least tell what input alphabet means.

describe a procedure dat takes as input 2 integers a and b s.t. 0<a<b and,using fair coin flips,produces as output heads with probability a/b and tails with probability (b-a)/b.give a bound on the expected no. of coin flips,which shud be O(1).(hint:represent a/b in binary)

1.show that summation (k=1 to n) 1/(2k-1) = ln(root n ) + O(1) by manipulating harmonic series.

the harmonic series is summation (k=1to n) 1/k = ln(n) + O(1) .

2.show that summation (k=1 to n) 1/k^2 is bounded above by a constant.

a deck of 10 cards ,each bearing a distinct no. frm 1 to 10,is shuffled to mix the cards thoroughly.3 cards r removed one at a time from the deck.what is the probability that the three cards r selected in sorted(increasing) order?

professor A flips a fair coin once.professor B flips a fair coin twice.what is the probability that professor A obtains more heads than professor B?