From 66706d26f2d19426feeb20eec8d9bb8c5e124677 Mon Sep 17 00:00:00 2001 From: Bram van den Heuvel Date: Sat, 30 Dec 2023 18:51:29 +0100 Subject: [PATCH] Add C day 2 --- c/02/Makefile | 7 ++++ c/02/input.txt | 100 ++++++++++++++++++++++++++++++++++++++++++++++ c/02/part_1.c | 76 +++++++++++++++++++++++++++++++++++ c/02/part_2.c | 77 +++++++++++++++++++++++++++++++++++ c/include/parse.c | 91 +++++++++++++++++++++++++++++++++++++++++ c/include/parse.h | 22 ++++++++++ 6 files changed, 373 insertions(+) create mode 100644 c/02/Makefile create mode 100644 c/02/input.txt create mode 100644 c/02/part_1.c create mode 100644 c/02/part_2.c create mode 100644 c/include/parse.c create mode 100644 c/include/parse.h diff --git a/c/02/Makefile b/c/02/Makefile new file mode 100644 index 0000000..d39c14f --- /dev/null +++ b/c/02/Makefile @@ -0,0 +1,7 @@ +both: p1 p2 + +p1: + gcc -o main1 part_1.c -lcs50 -I../include ../include/parse.c + +p2: + gcc -o main2 part_2.c -lcs50 -I../include ../include/parse.c diff --git a/c/02/input.txt b/c/02/input.txt new file mode 100644 index 0000000..5f5943c --- /dev/null +++ b/c/02/input.txt @@ -0,0 +1,100 @@ +Game 1: 7 blue, 6 green, 3 red; 3 red, 5 green, 1 blue; 1 red, 5 green, 8 blue; 3 red, 1 green, 5 blue +Game 2: 9 green, 1 blue, 12 red; 1 blue, 18 green, 8 red; 2 blue, 6 green, 13 red; 3 blue, 13 red, 7 green; 5 blue, 4 red, 4 green; 6 blue, 7 green, 4 red +Game 3: 5 blue, 9 red, 14 green; 10 green, 3 blue; 11 red, 2 blue, 8 green; 5 red, 2 blue; 5 blue, 7 green, 8 red +Game 4: 2 red, 3 blue, 2 green; 17 green, 6 blue, 1 red; 3 blue, 5 green, 1 red; 4 red, 1 blue, 16 green; 5 red, 4 blue, 13 green; 14 green, 5 blue, 6 red +Game 5: 3 red, 17 green, 10 blue; 9 blue, 5 green; 14 green, 9 blue, 11 red +Game 6: 4 green, 18 blue, 3 red; 6 green, 8 blue, 9 red; 4 green, 9 blue, 7 red; 9 red, 1 green, 12 blue +Game 7: 1 blue, 14 green; 1 red, 4 blue, 15 green; 3 blue, 6 green; 3 blue, 2 green, 1 red; 1 red, 3 green, 1 blue +Game 8: 10 red, 3 blue, 3 green; 5 blue, 7 red, 3 green; 3 red, 3 green, 11 blue; 1 red, 7 green, 10 blue; 13 blue, 5 green, 5 red; 1 green, 17 blue, 3 red +Game 9: 1 blue, 6 green; 7 green, 2 red; 3 red, 2 green; 1 blue, 4 red, 3 green; 7 green, 1 blue, 1 red +Game 10: 14 green, 6 blue, 1 red; 8 green, 5 red, 1 blue; 8 green, 5 blue, 5 red; 2 green, 3 blue, 5 red +Game 11: 1 blue, 2 green; 1 blue, 1 green, 7 red; 1 blue, 4 green, 7 red; 2 red, 2 green, 1 blue +Game 12: 5 blue, 12 green, 12 red; 11 green, 3 red; 14 green, 3 blue, 18 red +Game 13: 2 green, 6 red; 6 red, 5 blue; 7 red, 3 blue, 8 green; 7 red, 8 green; 3 blue, 2 green, 3 red; 1 blue, 8 red, 6 green +Game 14: 18 green, 6 blue, 5 red; 5 blue, 15 red, 19 green; 7 green, 11 blue, 20 red; 5 red, 18 green, 7 blue +Game 15: 3 red, 16 green, 1 blue; 11 green, 6 red, 1 blue; 12 green, 2 red; 17 green, 1 blue, 14 red +Game 16: 3 red, 2 green, 5 blue; 1 green, 6 blue, 1 red; 1 green, 2 blue, 3 red; 1 blue, 1 red; 5 blue, 1 green, 2 red +Game 17: 3 blue, 6 red; 1 blue, 2 red; 1 blue, 1 green, 7 red; 1 green, 7 red, 2 blue; 7 red, 1 blue; 1 green, 8 red, 1 blue +Game 18: 6 green, 10 red; 6 red, 7 green; 10 red, 11 green; 10 red, 2 blue, 5 green +Game 19: 2 blue; 1 blue, 4 green, 6 red; 7 green, 6 red, 2 blue; 2 blue, 5 red, 4 green; 1 green, 10 red +Game 20: 6 red, 5 green, 10 blue; 5 blue, 5 green, 9 red; 7 blue, 3 green, 3 red; 9 blue, 12 red, 1 green +Game 21: 4 red, 18 blue, 14 green; 3 green, 14 blue, 5 red; 5 green, 12 blue; 1 blue, 2 red, 1 green; 5 red, 11 green, 7 blue; 17 green, 4 red, 15 blue +Game 22: 1 blue, 14 green, 4 red; 7 green, 10 red; 9 green, 1 blue, 9 red; 1 blue, 8 green, 5 red +Game 23: 4 blue, 5 green, 2 red; 6 blue, 8 red, 4 green; 4 blue, 17 red, 14 green +Game 24: 3 green, 8 blue; 3 blue, 5 green, 13 red; 17 red, 4 green +Game 25: 19 red, 9 blue, 1 green; 3 green, 18 red, 6 blue; 1 green, 7 red, 7 blue; 8 blue, 1 red +Game 26: 10 green, 12 blue, 2 red; 9 red; 10 blue, 12 green, 9 red +Game 27: 2 blue, 8 green, 6 red; 5 green, 9 red; 4 red, 11 green +Game 28: 10 blue, 20 red; 14 blue, 3 green, 2 red; 9 red, 12 blue, 1 green +Game 29: 4 red, 1 blue, 2 green; 1 green, 6 red, 1 blue; 15 red +Game 30: 1 red, 13 blue, 6 green; 3 blue, 4 green; 19 blue, 11 green; 1 red, 11 green, 14 blue +Game 31: 10 red, 12 green; 12 green, 10 red; 2 blue, 15 red, 12 green; 2 green, 2 blue, 15 red; 9 green, 5 red, 2 blue +Game 32: 5 blue, 5 green, 8 red; 5 green, 6 red; 5 blue, 8 red, 4 green; 5 green, 3 blue, 6 red +Game 33: 1 red, 9 green, 5 blue; 17 green, 4 blue; 3 green, 2 blue; 10 green, 2 blue; 1 blue, 4 green; 2 green, 9 blue +Game 34: 11 blue, 11 red, 9 green; 13 red, 3 blue, 5 green; 9 green, 12 blue, 5 red; 13 red, 8 blue, 5 green +Game 35: 1 green, 3 red, 7 blue; 1 red, 3 green, 9 blue; 1 blue, 2 green, 1 red; 11 blue, 5 red, 6 green +Game 36: 4 blue, 12 green, 16 red; 7 blue, 11 green; 8 green, 5 blue, 1 red; 14 green, 3 red +Game 37: 13 red, 5 blue, 9 green; 1 red, 10 blue, 14 green; 1 green, 2 blue, 10 red; 13 red, 10 blue; 1 blue, 8 green +Game 38: 3 red, 4 blue, 8 green; 1 red, 11 blue, 4 green; 13 blue, 8 green; 3 red, 3 green, 10 blue; 1 red, 1 blue, 1 green; 1 green, 2 red, 10 blue +Game 39: 9 red, 7 blue, 1 green; 15 red, 4 green, 1 blue; 2 green, 8 blue, 7 red; 6 blue, 11 red; 12 red, 2 blue, 7 green +Game 40: 13 red, 3 green, 1 blue; 3 green, 10 red; 16 red +Game 41: 1 blue, 3 red; 7 blue, 5 red, 3 green; 4 red, 3 blue, 2 green; 2 blue, 5 red, 1 green; 3 green, 4 red, 3 blue; 5 blue, 2 red +Game 42: 1 red, 4 green; 11 red, 4 green; 13 red; 1 blue, 10 red; 1 blue, 2 red, 4 green +Game 43: 11 green, 13 red, 1 blue; 11 green, 9 red, 2 blue; 7 green; 13 green, 15 red; 1 blue, 14 green +Game 44: 5 green, 14 blue, 15 red; 13 blue, 15 green; 9 green, 15 red, 6 blue +Game 45: 16 red, 8 blue; 1 green, 4 blue, 6 red; 4 blue, 8 red; 12 red, 3 blue, 3 green; 2 green, 4 red, 4 blue; 2 green, 8 blue, 10 red +Game 46: 12 blue, 3 green, 12 red; 9 red, 9 blue; 3 green, 12 red; 10 red, 6 green; 2 red, 7 blue +Game 47: 9 green, 6 red; 1 blue, 7 red, 10 green; 1 green, 2 red; 1 red, 3 green +Game 48: 9 blue, 5 green, 13 red; 14 green, 4 red; 15 red, 9 green, 1 blue; 4 blue, 6 red, 13 green; 9 green, 8 blue, 8 red +Game 49: 5 blue, 3 red; 1 green, 2 red, 5 blue; 1 green, 7 blue; 3 green +Game 50: 8 red, 6 green; 10 blue, 4 green, 6 red; 8 green, 11 blue, 9 red +Game 51: 5 blue; 13 blue; 1 red, 2 blue, 1 green; 1 red, 8 blue +Game 52: 7 blue; 1 red, 2 green, 12 blue; 1 red, 5 blue; 2 red, 7 blue, 4 green; 3 green, 2 red, 2 blue +Game 53: 10 blue, 12 red; 3 green, 5 blue, 3 red; 14 red, 4 green, 7 blue; 1 red, 14 blue +Game 54: 2 blue, 14 red, 3 green; 3 green, 7 red; 2 blue, 3 green, 9 red; 3 green, 7 red; 1 green, 14 red, 1 blue +Game 55: 3 green, 9 red, 12 blue; 5 blue, 5 green, 2 red; 7 green, 14 red, 12 blue +Game 56: 1 blue, 3 red, 4 green; 5 red, 8 green, 1 blue; 3 green, 1 blue, 2 red +Game 57: 8 blue, 13 red, 2 green; 3 blue, 5 red; 7 red, 2 green; 2 red, 5 blue, 3 green; 1 green, 4 blue +Game 58: 4 green, 3 red, 2 blue; 5 green, 2 blue, 10 red; 11 green, 1 red, 2 blue; 4 red, 5 green +Game 59: 5 green; 4 green, 2 blue; 1 red, 9 green; 7 green, 2 blue; 16 green, 1 blue +Game 60: 6 green, 5 blue, 1 red; 5 blue, 3 green, 6 red; 1 green, 5 blue, 14 red; 6 red, 4 blue, 3 green +Game 61: 2 green, 6 red, 6 blue; 6 blue, 3 red; 1 green, 2 red, 2 blue; 1 red, 2 green; 5 red, 1 green, 2 blue; 2 green, 6 red, 6 blue +Game 62: 18 green, 8 blue, 1 red; 8 green, 4 red; 13 blue, 1 red, 3 green; 7 blue, 2 green, 4 red; 4 blue, 12 green, 5 red; 12 green, 11 blue +Game 63: 2 red, 3 blue; 10 green, 13 red, 1 blue; 11 red, 3 green, 4 blue +Game 64: 1 green, 16 red; 17 blue, 9 red, 1 green; 14 red, 7 blue +Game 65: 7 blue, 11 red, 11 green; 7 red, 11 green; 3 blue, 13 red, 11 green; 5 green, 6 blue; 11 blue, 8 red, 3 green +Game 66: 3 blue, 1 green, 3 red; 5 blue, 2 green, 5 red; 1 blue, 2 green, 7 red; 2 blue, 6 red; 7 red, 2 green, 2 blue; 2 red +Game 67: 1 blue, 6 red, 2 green; 1 blue, 10 green, 6 red; 8 red, 2 blue, 4 green; 7 green, 9 red, 1 blue; 8 red, 7 green; 5 green, 1 blue +Game 68: 15 blue, 8 green, 2 red; 6 blue, 2 green; 5 red, 6 green, 8 blue; 6 red, 11 green, 7 blue; 1 red, 3 blue; 5 red, 6 green, 5 blue +Game 69: 5 blue, 4 green; 1 green, 11 red, 9 blue; 4 green, 15 blue, 6 red; 11 blue, 4 green, 5 red; 8 red, 3 green; 5 blue, 8 red +Game 70: 5 blue, 4 red, 8 green; 6 blue, 6 green; 14 blue, 7 red, 1 green; 2 green, 6 blue, 3 red; 7 red, 11 blue, 3 green +Game 71: 13 red, 6 blue, 10 green; 7 red, 12 green; 9 green, 14 red, 2 blue +Game 72: 9 red, 3 green, 3 blue; 8 red, 7 blue, 5 green; 3 blue, 2 green, 1 red; 1 red, 2 blue, 2 green; 10 red, 7 green, 6 blue +Game 73: 4 green, 3 red; 1 red; 2 red, 2 blue, 2 green; 1 blue, 3 red, 1 green; 2 blue, 3 red, 2 green; 1 red, 1 blue +Game 74: 12 green, 4 red, 4 blue; 3 red, 13 green; 1 red, 13 green, 1 blue; 1 red, 3 blue, 6 green; 6 blue, 5 red, 4 green; 7 blue, 5 green, 1 red +Game 75: 11 red, 1 green; 12 blue, 1 red; 2 blue, 1 green, 4 red; 11 red; 12 red, 6 green, 10 blue; 4 green, 5 blue, 7 red +Game 76: 2 blue, 5 red, 6 green; 1 red, 10 green, 11 blue; 7 red, 11 green; 4 red, 10 blue, 10 green; 7 blue, 16 green, 2 red +Game 77: 2 blue, 11 red, 4 green; 6 green, 3 blue, 2 red; 2 blue, 2 red, 7 green; 8 red, 14 blue, 5 green; 5 green, 2 blue, 18 red +Game 78: 9 red, 7 green, 6 blue; 12 blue, 6 red; 1 red, 15 blue, 7 green; 3 blue, 11 green, 1 red +Game 79: 3 blue; 1 blue; 1 red, 1 blue, 1 green; 3 blue; 5 blue, 1 red; 1 blue, 1 green, 1 red +Game 80: 18 blue, 13 green, 7 red; 18 blue, 3 green, 3 red; 2 red, 9 blue, 14 green +Game 81: 11 blue, 6 green, 3 red; 8 green, 12 red, 10 blue; 5 red, 4 blue, 13 green +Game 82: 2 blue, 3 red; 4 blue, 17 red; 9 red; 12 red; 1 green, 6 blue, 7 red; 20 red +Game 83: 1 blue, 1 red; 3 red, 1 blue; 3 red, 5 green; 1 blue, 2 green, 4 red; 5 green, 3 blue, 2 red +Game 84: 4 red, 2 blue, 2 green; 8 red, 10 blue; 1 green, 15 red, 8 blue +Game 85: 15 green; 11 red, 2 blue, 5 green; 8 red, 2 blue, 12 green; 15 red, 10 green; 10 red, 15 green; 17 red, 1 blue, 11 green +Game 86: 6 blue, 1 red; 2 green, 1 red, 8 blue; 2 green, 10 blue; 10 blue, 2 green; 1 red, 5 blue +Game 87: 4 red, 4 blue; 18 red, 8 blue; 16 red; 4 red, 1 green, 3 blue; 14 red, 9 blue +Game 88: 11 green, 7 blue, 4 red; 3 red; 2 blue, 12 red, 19 green; 13 red, 3 blue, 2 green +Game 89: 1 green, 1 red; 1 blue, 1 red, 6 green; 6 green, 3 red; 5 green, 2 red, 6 blue; 7 blue, 2 red, 8 green; 1 red, 2 blue +Game 90: 3 green, 3 red, 3 blue; 5 green, 2 blue, 3 red; 1 blue, 2 red; 11 green, 1 blue, 2 red; 1 green, 3 blue, 4 red +Game 91: 7 blue, 2 red; 2 blue, 1 red, 1 green; 6 blue, 1 red; 1 red, 7 blue +Game 92: 11 green, 16 blue; 17 red, 7 blue, 9 green; 11 green, 3 blue, 12 red; 2 blue, 1 green, 6 red +Game 93: 6 red, 1 blue, 3 green; 1 blue, 8 red, 7 green; 3 red, 5 green; 1 red, 2 green; 3 red, 7 green; 2 green, 15 red, 1 blue +Game 94: 7 blue, 2 red, 2 green; 9 blue, 4 red, 2 green; 9 blue, 5 red, 3 green; 1 blue, 4 red, 3 green; 4 red, 1 green, 7 blue; 9 blue, 3 green, 3 red +Game 95: 1 blue, 2 green, 2 red; 6 green, 6 red, 1 blue; 3 blue, 5 red, 2 green; 1 blue; 5 green, 2 red, 2 blue +Game 96: 3 blue, 6 red, 5 green; 5 blue, 8 green, 9 red; 2 red, 5 green, 1 blue; 6 green, 4 blue, 3 red; 2 green, 2 blue; 6 blue, 4 green +Game 97: 6 green, 8 blue, 5 red; 9 green, 6 blue; 3 green, 3 blue; 2 blue, 10 green, 4 red +Game 98: 11 blue, 1 green, 9 red; 5 green, 1 blue, 6 red; 13 blue, 6 green, 10 red; 6 blue, 4 green, 9 red +Game 99: 4 red, 3 green, 3 blue; 6 blue, 4 green, 11 red; 3 green, 15 red; 1 blue, 6 green, 14 red +Game 100: 14 green, 6 blue, 12 red; 2 green, 1 blue, 2 red; 12 red, 7 blue, 3 green; 1 blue, 12 red, 8 green \ No newline at end of file diff --git a/c/02/part_1.c b/c/02/part_1.c new file mode 100644 index 0000000..89a6db9 --- /dev/null +++ b/c/02/part_1.c @@ -0,0 +1,76 @@ +#include +#include +#include +#include + +// 1957 is too low + +// The amount of games expected +const int games = 100; + +// How many of each cube are allowed +const int allowed_red = 12; +const int allowed_green = 13; +const int allowed_blue = 14; + +// How many letter each color takes up +const int chars_red = strlen("red"); +const int chars_green = strlen("green"); +const int chars_blue = strlen("blue"); + +// Pre-defined functions +int game_score(char *text); + +int main(void) { + int sum = 0; + + char *inputs[games]; + for (int i = 0; i < games; i++) { + inputs[i] = get_string(""); + } + + for (int i = 0; i < games; i++) { + sum += game_score(inputs[i]); + } + + printf("%i\n", sum); + return 0; +} + +/* Determine a game's score. +*/ +int game_score(char *text) { + int value = 0; + int game; + int *cursor = &value; + + parse_token(text, cursor, "Game "); + parse_int(text, cursor, &game); + parse_token(text, cursor, ":"); + + do + { + int number; + + parse_token(text, cursor, " "); + parse_int(text, cursor, &number); + parse_token(text, cursor, " "); + + if (parse_token(text, cursor, "red")) { + if (number > allowed_red) { + return 0; + } + } else if (parse_token(text, cursor, "green")) { + if (number > allowed_green) { + return 0; + } + } else if (parse_token(text, cursor, "blue")) { + if (number > allowed_blue) { + return 0; + } + } + } + while (parse_token(text, cursor, ";") || parse_token(text, cursor, ",")); + + return game; +} \ No newline at end of file diff --git a/c/02/part_2.c b/c/02/part_2.c new file mode 100644 index 0000000..e624eb0 --- /dev/null +++ b/c/02/part_2.c @@ -0,0 +1,77 @@ +#include +#include +#include +#include + +// 1957 is too low + +// The amount of games expected +const int games = 100; + +// How many of each cube are allowed +const int allowed_red = 12; +const int allowed_green = 13; +const int allowed_blue = 14; + +// How many letter each color takes up +const int chars_red = strlen("red"); +const int chars_green = strlen("green"); +const int chars_blue = strlen("blue"); + +// Pre-defined functions +int game_score(char *text); + +int main(void) { + int sum = 0; + + char *inputs[games]; + for (int i = 0; i < games; i++) { + inputs[i] = get_string(""); + } + + for (int i = 0; i < games; i++) { + sum += game_score(inputs[i]); + } + + printf("%i\n", sum); + return 0; +} + +/* Determine a game's score. +*/ +int game_score(char *text) { + int value = 0; + int game; + int *cursor = &value; + int red = 0, green = 0, blue = 0; + + parse_token(text, cursor, "Game "); + parse_int(text, cursor, &game); + parse_token(text, cursor, ":"); + + do + { + int number; + + parse_token(text, cursor, " "); + parse_int(text, cursor, &number); + parse_token(text, cursor, " "); + + if (parse_token(text, cursor, "red")) { + if (number > red) { + red = number; + } + } else if (parse_token(text, cursor, "green")) { + if (number > green) { + green = number; + } + } else if (parse_token(text, cursor, "blue")) { + if (number > blue) { + blue = number; + } + } + } + while (parse_token(text, cursor, ";") || parse_token(text, cursor, ",")); + + return red * green * blue; +} \ No newline at end of file diff --git a/c/include/parse.c b/c/include/parse.c new file mode 100644 index 0000000..7d266cb --- /dev/null +++ b/c/include/parse.c @@ -0,0 +1,91 @@ +/* This parsing library aims to imitate how Elm parses strings. + +In contrast to Elm, however, this function makes use of the side-effects that +C brings, allowing for impurity and a lack of need to return values. + +Instead, every parser merely returns a boolean that expresses whether it had +parsed successfully. +*/ + +#include +#include +#include +#include + +const bool DEBUG = false; + +/* Parse a single char and fetch the result. +*/ +bool parse_char(char *text, int *cursor, char *c) { + int length = strlen(text); + + if (DEBUG) printf("Parsing a char : "); + + if (*cursor == length) { + if (DEBUG) printf("Reached end of string [FAIL]\n"); + return false; + } + + *c = text[*cursor]; + *cursor = *cursor + 1; + if (DEBUG) printf("%c [Success]\n", *c); + return true; +} + +/* Parse an integer. +*/ +bool parse_int(char *text, int *cursor, int *output) { + int is_negative = parse_token(text, cursor, "-"); + + if (DEBUG) printf("Parsing int : "); + int answer = 0; + char c = text[*cursor]; + + if (c < '0' || c > '9') { + if (DEBUG) printf("%c [FAIL]\n", c); + return false; + } + + do + { + if (DEBUG) printf("%c", c); + answer = (answer * 10) + (c - '0'); + *cursor = *cursor + 1; + c = text[*cursor]; + } + while (c >= '0' && c <= '9'); + + if (DEBUG) printf(" [Success ]\n"); + + if (is_negative) { + answer = -1 * answer; + } + + *output = answer; + return true; +} + +/* Parse a token of text. +*/ +bool parse_token(char *text, int *cursor, char *token) { + int length = strlen(token), text_length = strlen(text); + if (DEBUG) printf("Parsing token \"%s\" : ", token); + + if (text_length - *cursor < length) { + if (DEBUG) printf("Token too long, won't fit. [FAIL]\n"); + return false; + } + + for (int i = 0; i < length; i++) { + if (DEBUG) printf("%c", text[*cursor + i]); + if (text[*cursor + i] != token[i]) { + if (DEBUG) printf(" [FAIL]\n"); + *cursor = *cursor + i; + return false; + } + } + + if (DEBUG) printf(" [Success]\n"); + *cursor = *cursor + length; + return true; +} diff --git a/c/include/parse.h b/c/include/parse.h new file mode 100644 index 0000000..313b466 --- /dev/null +++ b/c/include/parse.h @@ -0,0 +1,22 @@ +/* This parsing library aims to imitate how Elm parses strings. + +In contrast to Elm, however, this function makes use of the side-effects that +C brings, allowing for impurity and a lack of need to return values. + +Instead, every parser merely returns a boolean that expresses whether it had +parsed successfully. +*/ + +#include + +/* Parse a single char and fetch the result. +*/ +bool parse_char(char *text, int *cursor, char *c); + +/* Parse an integer. +*/ +bool parse_int(char *text, int *cursor, int *output); + +/* Parse a token of text. +*/ +bool parse_token(char *text, int *cursor, char *token);