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In this problem you say that the second line of the input is a list of integers which is the output of the functions f(1), f(2), f(3), ...
"The second line contains n space separated integers, the values of f(1), f(2), f(3), ..., f(n) respectively."
If this is the case, given an input list of 3 2 1 5 4 would appear to result in the following: f(1) = 3, f(2) = 2, f(3) = 1, f(4) = 5, f(5) = 4.
Why would the inverse then not always be the following for all input lists?
1 2 3 4 5
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Security Function Inverses
You are viewing a single comment's thread. Return to all comments →
In this problem you say that the second line of the input is a list of integers which is the output of the functions f(1), f(2), f(3), ...
"The second line contains n space separated integers, the values of f(1), f(2), f(3), ..., f(n) respectively."
If this is the case, given an input list of 3 2 1 5 4 would appear to result in the following: f(1) = 3, f(2) = 2, f(3) = 1, f(4) = 5, f(5) = 4.
Why would the inverse then not always be the following for all input lists?
1 2 3 4 5