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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define CAP 3000
#if 0
#define PFILE "sample.txt"
#else
#define PFILE "input.txt"
#endif
int vals[CAP];
size_t vals_sz = 0;
void Parse()
{
// Parse
char ch;
FILE *fp;
fp = fopen(PFILE, "r");
char int_buf[6];
memset(int_buf, '\0', sizeof(int_buf));
int n = 0;
while((ch = fgetc(fp)) != EOF)
{
if(ch != ',')
{
int_buf[n] = ch;
n += 1;
continue;
}
vals[vals_sz] = atoi(int_buf);
vals_sz += 1;
memset(int_buf, '\0', sizeof(int_buf));
n = 0;
}
}
void Part1()
{
Parse();
size_t fuel_arr[CAP];
size_t fuel = 0;
for(int i = 0; i < CAP; i++)
{
int target = i;
for(int j = 0; j < vals_sz; j++)
fuel += abs(target - vals[j]);
fuel_arr[i] = fuel;
fuel = 0;
}
// Find the smallest in the fuel array
for(size_t i = 0; i < CAP; i++)
{
size_t counter = 0;
for(int j = 0; j < CAP; j++)
{
if(fuel_arr[i] <= fuel_arr[j])
counter += 1;
}
if(counter == CAP)
{
printf("%d\n", fuel_arr[i]);
break;
}
}
}
size_t CountFuel(int target)
{
// somehow works idk
size_t sum = 0;
for(size_t i = 1; i <= target; i++)
sum += i;
return sum;
}
void Part2()
{
Parse();
size_t fuel_arr[CAP];
size_t fuel = 0;
for(int i = 0; i < CAP; i++)
{
size_t target = i;
for(int j = 0; j < vals_sz; j++)
fuel += CountFuel(abs(target - vals[j]));
fuel_arr[i] = fuel;
fuel = 0;
}
// Find the smallest in the fuel array
for(size_t i = 0; i < CAP; i++)
{
size_t counter = 0;
for(size_t j = 0; j < CAP; j++)
{
if(fuel_arr[i] <= fuel_arr[j])
counter += 1;
}
if(counter == CAP)
{
printf("%d: %d\n", i, fuel_arr[i]);
break;
}
}
}
int main()
{
Part2();
return 0;
}
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