aycabta
/ gist:3600757
Created
September 2, 2012 15:47
Log of Ackermann function implementation in C that uses unsigned long long
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| start: ack(4, 1) | |
| result: 65533 | |
| 41.62027700 | |
| start: goto_ack(4, 1) | |
| result: 65533 | |
| 21.50686800 | |
| start: while_ack(4, 1) | |
| result: 65533 | |
| 22.70978300 |
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| Ack(3, 3) | |
| = Ack(2, Ack(3, 2)) | |
| = Ack(2, Ack(2, Ack(3, 1))) | |
| = Ack(2, Ack(2, Ack(2, Ack(3, 0)))) | |
| = Ack(2, Ack(2, Ack(2, Ack(2, 1)))) | |
| = Ack(2, Ack(2, Ack(2, Ack(1, Ack(2, 0))))) | |
| = Ack(2, Ack(2, Ack(2, Ack(1, Ack(1, 1))))) | |
| = Ack(2, Ack(2, Ack(2, Ack(1, Ack(0, Ack(1, 0)))))) | |
| = Ack(2, Ack(2, Ack(2, Ack(1, Ack(0, Ack(0, 1)))))) | |
| = Ack(2, Ack(2, Ack(2, Ack(1, Ack(0, 2))))) |
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| $ git clone git://github.com/aycabta/wakwakphone.git | |
| $ cd wakwakphone |
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| $ ruby ./voip-setup.cgi |
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| "sip: 05011111111@ss01.lmc.xephion.ne.jp" | |
| "server address: 61.125.11.182" | |
| "user ID: 0123456789ABCDEFABCDEF0123456789" | |
| "password: FEDCBA9876543210FEDCBA9876543210" |
aycabta
/ gmp_curry_up_and_down.c
Created
September 14, 2012 13:20
test to curry up with GMP low-level functions
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| #include <limits.h> | |
| #include <gmp.h> | |
| #define NUM32BIT 4294967296L | |
| int main(void) | |
| { | |
| mpz_t mpz_i; | |
| mpz_t step; | |
| mpz_t end; |
aycabta
/ gmp_ack4_2.c
Created
September 14, 2012 15:23
Result of Ack(4, n) that is culculated by power and subtraction.
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| #include <gmp.h> | |
| int main(void) | |
| { | |
| mpz_t result; | |
| mpz_init(result); | |
| mpz_ui_pow_ui(result, 2L, 65536L); | |
| mpz_sub_ui(result, result, 3L); |
aycabta
/ culc_power_of_2.rb
Created
September 18, 2012 15:47
Calculate 2^n that is computable even where n is larger than ULONG_LONG_MAX.
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| factor = 65536 | |
| cy_pos = 0 | |
| cy_interval_list = Array.new | |
| next_cy_interval_list = Array.new | |
| cy_interval_count = 0 | |
| digit = 1 | |
| num_of_digit = 1 |
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| num = 1 | |
| 1024.times do | |
| num *= 2 | |
| p "oh...." if num.to_s.include? "0000" | |
| end | |
| # "oh...." is printed 11 times. |
aycabta
/ data_to_html.rb
Created
October 5, 2012 17:32
usage: mkdir images; mkdir images_small; ruby negi_t.rb > output && ruby data_to_html.rb > html && sh resize.sh
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| puts "<table border=\"0\" width=\"700\" align=\"center\">\n" | |
| puts " <tr bgcolor=\"#000000\">\n" | |
| puts " <th></th>\n" | |
| puts " <th></th>\n" | |
| puts " <th></th>\n" | |
| puts " <th></th>\n" | |
| puts " <th></th>\n" | |
| puts " </tr>\n" | |
| items = Array.new |
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