advent2023

commit 8537cc91d8cc26a533756e266225c1bbbbb5bc8e
parent 2f3120f553b9ee89bb83306ebd90b0d71684e644
Author: bsandro <email@bsandro.tech>
Date:   Sat,  2 Dec 2023 08:24:09 +0200

day 02 p2 still no brain cells involved

Diffstat:
M
day02/puzzle.c
 | 
27
++++++++++++++++++---------

1 file changed, 18 insertions(+), 9 deletions(-)
diff --git a/day02/puzzle.c b/day02/puzzle.c
@@ -1,5 +1,6 @@
 #define _DEFAULT_SOURCE
 
+#include <limits.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <errno.h>
@@ -31,7 +32,7 @@ void puzzle(const char *filename, long long *result1, long long *result2) {
 		int game_num;
 		int n = sscanf(buf, "Game %d:", &game_num);
 		if (n==1) {
-			printf("game %d\n", game_num);
+			//printf("game %d\n", game_num);
 		} else {
 			printf("parse error\n");
 			break;
@@ -46,6 +47,7 @@ void puzzle(const char *filename, long long *result1, long long *result2) {
 		bool game_valid = true;
 		int len = strlen(game_sep);
 		int i = 0;
+		int r=0,g=0,b=0;
 		while (i<len) {
 			if (is_digit(game_sep[i])) {
 				int number = game_sep[i]-'0';
@@ -54,14 +56,19 @@ void puzzle(const char *filename, long long *result1, long long *result2) {
 					++i;
 				}
 				char color = game_sep[i+2];
-				printf("%d %c\n", number, color);
-				if ((color=='r' && number>12) ||
-					(color=='g' && number>13) ||
-					(color=='b' && number>14))
-				{
-						printf("invalid game");
-						game_valid = false;
-						break;
+				//printf("%d %c\n", number, color);
+
+				if (color=='r') {
+					if (number>12) game_valid = false;
+					if (number>r) r = number;
+				}
+				if (color=='g') {
+					if (number>13) game_valid = false;
+					if (number>g) g = number;
+				}
+				if (color=='b') {
+					if (number>14) game_valid = false;
+					if (number>b) b = number;
 				}
 			}
 			++i;
@@ -71,6 +78,8 @@ void puzzle(const char *filename, long long *result1, long long *result2) {
 			*result1 += game_num;
 		}
 
+		*result2 += r*g*b;
+
 		++line_num;
 		bzero(buf, STR_LEN);
 	}