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# Algorithms and Data Structures: Tutorial 2
This package contains the following files:
* construct.h
* construct.c
* Ex1.c
* Ex2.c
Where construct is an minimal implementation of Lisp construct with
`cons`, `car`, `cdr`, `length`, `nth` and `insert`. It eases and simplifies
the implementation of linked lists (and trees and and graphs if we study them
later on). All source files are as licensed under the Unlicense which states
> This is free and unencumbered software released into the public domain.
>
> Anyone is free to copy, modify, publish, use, compile, sell, or
> distribute this software, either in source code form or as a compiled
> binary, for any purpose, commercial or non-commercial, and by any
> means.
>
> In jurisdictions that recognize copyright laws, the author or authors
> of this software dedicate any and all copyright interest in the
> software to the public domain. We make this dedication for the benefit
> of the public at large and to the detriment of our heirs and
> successors. We intend this dedication to be an overt act of
> relinquishment in perpetuity of all present and future rights to this
> software under copyright law.
>
> THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
> EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
> MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
> IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
> OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
> ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
> OTHER DEALINGS IN THE SOFTWARE.
>
> For more information, please refer to <http://unlicense.org/>
The solution of the second exercise uses the math library and thus
it needs to by linked during compilation. Both uses the `construct` library:
cc construct.c Ex1.c -o Ex1
cc construct.c Ex2.c -lm -o Ex2
Additionally, `Ex2` requires a value of `x` to be entered from stdin:
./Ex1
echo 7 | ./Ex2
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