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smart pre-calculation can save ur time

my assumption for this ans is: there is no one said about 1.....so we have to consider that 1 is true.....and as he is true.....2,3,4 are false....;)

and if there was another statement like 2 -1....then the ans would be 0.......as 2 says that 1 is false...lets consider 1 is false.....as false can ...

it shows 1......

sry for the mistake ....i've edited that

for this input......

20 6
1 -3
2 -3
3 1
2 2
7 -1
4 3

my ac code shows 18 :D

I don't quite understand why this input causes 18. From my understanding,

If 1 is reliable, then
a) 7 is not reliable, (since 7 says 1 is not reliable) and
b) 3 is not reliable. (since 1 says 3 is not reliable) => 4 ...

the ans will be 1

try this case...... ur code shows 81.000000 81.771666
but the ans will be 81.771666 81.771666.............

i think u got the point........

this prob is really very easy......it says to find out MAXIMUM no of reliable ans......so if any one says that "A" is not reliable......then we don't need to bother about "A"......even if next time anyone says that "A" is reliable......bcz A is already out of focus...... :wink: i think this will ...

try this input the rigth out put should be 18......your code shows 19.....