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Created October 10, 2015 12:50
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A FizzBuzz program. Somehow. I don't know why it works.
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <gmp.h>
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char ** exploade (char* explodeString, char delimiter){
int count = 1;
int prevcount = 1;
int position[1024] = {0};
position[0]=-1;
int i = 0;
for(i = 0; explodeString[i]!=0; ++i){
count += (explodeString[i]==delimiter);
position[prevcount]=i;
prevcount = count;
}
position[count]=i;
char ** result = malloc(sizeof(char*)*(count+1));
result[count]=NULL;
for(int i = 0; i < count; ++i){
result[i] = malloc((position[i+1]-position[i])*sizeof(char));
memcpy(result[i], explodeString+position[i]+1,position[i+1]-position[i]-1);
result[i][position[i+1]-position[i]-1] = 0;
}
return result;
}
/* I did a typo */
#define explode exploade
/*
* I am a C programmer. I have a deep and abiding understanding of
* NULL-terminated lists and quintuple indirection.
*/
char ***** parse (char * string) {
char ** adds = explode(polynomial, '+');
int length[3];
for(length[0] = 0; adds[length[0]] != NULL; ++length[0]);
char *** addAndSubs = malloc(length[0]*sizeof(char**));
char **** addAndSubsAndMultiplies = malloc(length[0]*sizeof(char***));
char ***** addAndAllOthers = malloc(length[0]*sizeof(char****));
for(int i = 0; adds[i] != NULL; ++i){
addAndSubs[i] = explode(adds[i], '-');
for(length[1] = 0; addAndSubs[i][length[1]] != NULL; ++length[1]);
addAndSubsAndMultiplies[i] = malloc(length[1]*sizeof(char**));
addAndAllOthers[i] = malloc(length[1]*sizeof(char***));
for(int j = 0; addAndSubs[i][j] != NULL; ++j){
addAndSubsAndMultiplies[i][j] = explode(addAndSubs[i][j], '*');
for(length[2] = 0; addAndSubsAndMultiplies[i][j][length[2]] != NULL;++length[2]);
addAndAllOthers[i][j] = malloc(length[2]*sizeof(char**));
for(int k = 0; addAndSubsAndMultiplies[i][j][k] != NULL; ++k){
char chars[2] = {'/', '^'};
addAndAllOthers[i][j][k] = explode(addAndSubsAndMultiplies[i][j][k], chars[k]);
}
addAndAllOthers[i][j][length[2]] = NULL;
}
addAndSubsAndMultiplies[i][length[1]] = NULL;
addAndAllOthers[i][length[1]] = NULL;
}
addAndSubs[length[0]] = NULL;
addAndSubsAndMultiplies[length[0]] = NULL;
addAndAllOthers[length[0]] = NULL;
return addAndAllOthers;
}
unsigned long long calculatePolynomial(char***** polynom, long int x){
mpq_t finalSolution;
mpq_init(finalSolution);
for(int II = 0; polynom[II] != NULL; ++II){
for(int Il = 0; polynom[II][Il] != NULL; ++Il){
mpq_t coeff, temp, expon;
mpq_init(coeff);
mpq_init(expon);
mpq_init(temp);
mpq_set_str(expon, "1", 25);
for(int lI = 0; polynom[II][Il][lI] != NULL; ++lI){
char buf[1024] = {0};
char slash[2] = "/";
for(int ll = 0; polynom[II][Il][lI][ll] != NULL && polynom[II][Il][lI][ll][0] != 0; ++ll){
if(lI == 0){
if(ll == 0)
strcpy(buf,polynom[II][Il][lI][ll]);
if(ll == 1){
strcat(buf, slash);
strcat(buf, polynom[II][Il][lI][ll]);
}
}
if(lI == 1){
unsigned long int n = polynom[II][Il][lI][ll][0] == 'x' ? x : strtol(polynom[II][Il][lI][ll], NULL, 10);
if(ll == 0){
mpz_set_ui(mpq_numref(expon),n);
}
else {
mpz_pow_ui(mpq_numref(expon),mpq_numref(expon),n);
}
}
}
if(lI == 0) mpq_set_str(coeff, buf, 10);
}
mpq_mul(temp,coeff,expon);
mpq_canonicalize(temp);
if(Il == 0){
mpq_add(finalSolution,finalSolution,temp);
}else{
mpq_sub(finalSolution,finalSolution,temp);
}
mpq_clear(expon);
mpq_clear(coeff);
mpq_clear(temp);
}
}
char someString[128];
mpq_get_str(someString, 10, finalSolution);
mpq_clear(finalSolution);
unsigned long long returnValue = strtoll(someString, NULL, 10);
return returnValue;
}
int main (int argc, char** argv) {
char ***** parsedPolynomial = parse(polynomial);
unsigned long long wtf[2] = {0};
for(int i = 1; i <= 100; ++i){
wtf[0] = calculatePolynomial(parsedPolynomial, i);
printf("%s\n",wtf);
}
return 0;
}
@bhalash
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bhalash commented Oct 10, 2015

This is beautiful.

@mjsmith707
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NSFW

@gabizou
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gabizou commented Oct 11, 2015

Do you want eye cancer? Because this is how you get eye cancer...

@jclishman
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Amazing, 10/10

@lacymorrow
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Holy hell.

@matan7890
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It's a beautiful art work.

@Porges
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Porges commented Oct 12, 2015

Should have written it in Haskell, of course ;)
https://gist.github.com/Porges/6de4ff7fdb5c1ef5530a

@Subsentient
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As a C programmer, MY EYES!!!!

@ferdbold
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Do you do autographs?

@afnanenayet
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This makes me weep with joy

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ghost commented Nov 19, 2015

What the fuck am I looking at?

@deli73
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deli73 commented Jul 6, 2018

this is terrifying and cursed but part of me very deeply wishes to understand how the hell this works

@ZILtoid1991
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Similar thing happened to me in D when I coded sleep deprived. I had to rewrite the whole thing in order to optimize it.

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