87 lines
2.3 KiB
C
87 lines
2.3 KiB
C
//
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// Created by Lennart on 02/12/2023.
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//
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#define __STDC_WANT_LIB_EXT1__ 1
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <math.h>
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#include <stdbool.h>
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#include "input_handler.h"
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char *buffer;
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int bufferLen;
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#define MAX_RED_CUBES 12
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#define MAX_GREEN_CUBES 13
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#define MAX_BLUE_CUBES 14
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#ifdef _WIN32
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#define STRTOK_TS strtok_s
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#elif defined(__STDC_LIB_EXT1__)
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#define STRTOK_TS strtok_s
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#elif _SVID_SOURCE || _BSD_SOURCE || _POSIX_C_SOURCE >= 1 || _XOPEN_SOURCE || _POSIX_SOURCE
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#define STRTOK_TS strtok_r
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#endif //_WIN32
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void main() {
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buffer = NULL;
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FILE *f = fopen("day_2.txt", "r");
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if(f == NULL) {
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printf("File not found!");
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exit(-1);
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}
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int result1 = 0;
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int result2 = 0;
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while(!feof(f)) {
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char *line = read_line(f, &buffer, &bufferLen);
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int gameId;
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sscanf(line, "Game %i: ", &gameId);
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char *sets = &line[strlen("Game : ") + (int) floor(log10(abs(gameId))) + 1];
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char *set_context;
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char *set = STRTOK_TS(sets, ";", &set_context);
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int maxRed = 0, maxGreen = 0, maxBlue = 0;
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bool fits = true;
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while(set != NULL) {
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char *cube = strtok(set, ",");
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int red = 0, green = 0, blue = 0;
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while(cube != NULL) {
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int amount;
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char color[10];
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sscanf(cube, "%i %s", &amount, &color[0]);
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if(strcmp(&color[0], "red") == 0 && (red += amount) > MAX_RED_CUBES) {
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fits = false;
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} else if(strcmp(&color[0], "green") == 0 && (green += amount) > MAX_GREEN_CUBES) {
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fits = false;
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} else if(strcmp(&color[0], "blue") == 0 && (blue += amount) > MAX_BLUE_CUBES) {
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fits = false;
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}
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cube = strtok(NULL, ",");
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}
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maxRed = red > maxRed ? red : maxRed;
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maxGreen = green > maxGreen ? green : maxGreen;
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maxBlue = blue > maxBlue ? blue : maxBlue;
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set = STRTOK_TS(NULL, ";", &set_context);
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free(cube);
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}
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result1 += fits ? gameId : 0;
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result2 += maxRed * maxGreen * maxBlue;
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}
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printf("Result #1: %i\n", result1);
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printf("Result #2: %i\n", result2);
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fclose(f);
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free(buffer);
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}
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