committing everything squashed

02/part2.c

@@ -0,0 +1,28 @@
+#include <stdio.h>
+#include <stdlib.h>
+#define MAX_LENGTH 165
+
+int main(void) {
+    char buf[MAX_LENGTH];
+    int color_num, sum, max_r, max_g, max_b;
+
+    sum = 0;
+    while (fgets(buf, MAX_LENGTH, stdin)) {
+        char* c = buf + 5;  // +5 skips the "Game "
+        for (; *c != ':'; c++);
+
+        max_r = max_g = max_b = 0;
+        while (*c != '\n') {
+            color_num = strtol(c + 2, &c, 10);  // +2 skips ": ", ", " or "; "
+            c++;  // +1 skips the space
+            max_r = (*c == 'r' && color_num > max_r) ? color_num : max_r;
+            max_g = (*c == 'g' && color_num > max_g) ? color_num : max_g;
+            max_b = (*c == 'b' && color_num > max_b) ? color_num : max_b;
+            for (; *c >= 'a' && *c <= 'z'; c++);
+        }
+        sum += max_r * max_g * max_b;
+    }
+    printf("%d\n", sum);
+    return 0;
+}
+