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Thanks at lot, the error I had was just that you said

I do not know if it is legal to put external links, but the file is very large:

https://raw.github.com/jrbustosm/uva-so ... duct/input

the output is:

https://raw.github.com/jrbustosm/uva-so ... uct/salida

I am getting the wrong answer, and do not know why, could you help me?

f (x) = A * sin (x) + B * sin (x) = R * cos (x-alpha)

where,

R = sqrt (A * A + B * B) = f (x) max

alpha = atan (A / B)

f '(x) = A*cos(x) - B*sin(x) = 0

=> A*cos(x_max) - B*sin(x_max) = 0
tan(x_max) = A/B
x_max = atan(A/B ...

1. swap 1 y 0 (out place)
2. swap 1 y ?
3. convert 0 in 1, ? in 0 or 1

Input:


7
01??00
001010
01
10
110001
000000
101010011010?????111010101010???11010101010????1010101010?????10101010???1010101001???101010?1101001
1110010101010100100000010101010010101010100101010111111111000001011010100101000001010100101010100000 ...

This, is a case not being considered
what is the output?