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D.12.3.60 three_elements
Procedure from library crypto.lib (see crypto_lib).
- Usage:
- three_elements(out, iterations)
- Return:
- Injective_knapsack created with the three elements method
Example:
| | LIB "crypto.lib";
//this is fix-injective because 17=10+2+4+1 with different numbers of addens.
list super_increasing = 1,2,4,10,20;
list a = three_elements(super_increasing,2);
a;
==> [1]:
==> 1529
==> [2]:
==> 1147
==> [3]:
==> 764
==> [4]:
==> 153
==> [5]:
==> 115
==> [6]:
==> 76
==> [7]:
==> 20
==> [8]:
==> 10
==> [9]:
==> 4
==> [10]:
==> 2
==> [11]:
==> 1
set_is_injective(a);
==> 1
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