|
Last change
on this file since 127 was
81,
checked in by rosiere, 17 years ago
|
- Finish Environment (and test)
- Continue predictor_unit
- Add external tools
- svn keyword "Id" set
|
-
Property svn:keywords set to
Id
|
|
File size:
575 bytes
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| Line | |
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| 1 | #include "func_math.h" |
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| 2 | #include "func_premier.h" |
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| 3 | |
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| 4 | //-----[ Premier ]--------------------------------------------------------- |
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| 5 | |
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| 6 | unsigned int premier(unsigned int x) |
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| 7 | { |
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| 8 | unsigned int it; |
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| 9 | |
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| 10 | if (x <= 0) |
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| 11 | return 0; |
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| 12 | |
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| 13 | if (x <= 2) |
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| 14 | return 1; |
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| 15 | |
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| 16 | for(it=2; it <= (x/2); it++) |
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| 17 | if (modulo(x,it) == 0) |
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| 18 | return 0; |
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| 19 | |
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| 20 | return 1; |
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| 21 | } |
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| 22 | |
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| 23 | unsigned int n_premier(unsigned int nieme_premier) |
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| 24 | { |
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| 25 | unsigned int nb_find = 0; |
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| 26 | unsigned int res = 1; |
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| 27 | while (nb_find < nieme_premier) |
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| 28 | { |
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| 29 | res ++; |
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| 30 | if (premier(res) == 1) |
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| 31 | nb_find ++; |
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| 32 | } |
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| 33 | return res; |
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| 34 | } |
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| 35 | |
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