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1 | /* | ||
2 | ** EPITECH PROJECT, 2023 | ||
3 | ** my_find_prime_sup | ||
4 | ** File description: | ||
5 | ** Returns the previous prime number starting form a number (nb) | ||
6 | */ | ||
7 | /** | ||
8 | * @file my_find_prime_inf.c | ||
9 | * @brief The file containing the my_find_prime_inf function | ||
10 | * @author Nicolas TORO | ||
11 | */ | ||
12 | |||
13 | #include "my.h" | ||
14 | |||
15 | 3 | int my_find_prime_inf(int nb) | |
16 | { | ||
17 | 3 | int i = 0; | |
18 | |||
19 |
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3 | if (nb <= 1) |
20 | 1 | return -1; | |
21 |
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5 | while (my_is_prime(nb - i) == 0) |
22 | 3 | i++; | |
23 | 2 | return nb - i; | |
24 | } | ||
25 |