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fix d2p1 to be shorter

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This commit is contained in:
Duy Truong 2023-12-02 00:08:03 -08:00
parent 498953170e
commit 3e7812b556
1 changed files with 16 additions and 19 deletions
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35
02/part1.c
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@ -1,27 +1,23 @@
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
#define MAX_LENGTH 165 #define MAX_LENGTH 165
#define RED 1
#define GREEN 2
#define BLUE 3
int strtocolor(char* c, char** end) { char* skip_color(char* c) {
if (c[0] == 'r' && c[1] == 'e' && c[2] == 'd') { switch (*c) {
*end = c + 3; case 'r':
return RED; return c + 3;
} else if (c[0] == 'g' && c[1] == 'r' && c[2] == 'e' && c[3] == 'e' && c[4] == 'n') { case 'g':
*end = c + 5; return c + 5;
return GREEN; case 'b':
} else if (c[0] == 'b' && c[1] == 'l' && c[2] == 'u' && c[3] == 'e') { return c + 4;
*end = c + 4;
return BLUE;
} }
abort(); abort();
} }
int main(void) { int main(void) {
char buf[MAX_LENGTH]; char buf[MAX_LENGTH];
int game_num, color_num, color, sum; int game_num, cubes, sum;
sum = 0; sum = 0;
while (fgets(buf, MAX_LENGTH, stdin)) { while (fgets(buf, MAX_LENGTH, stdin)) {
@ -29,13 +25,14 @@ int main(void) {
game_num = strtol(c + 5, &c, 10); // +5 skips the "Game " game_num = strtol(c + 5, &c, 10); // +5 skips the "Game "
while (*c != '\n') { while (*c != '\n') {
color_num = strtol(c + 2, &c, 10); // +2 skips ": ", ", ", or "; " cubes = strtol(c + 2, &c, 10); // +2 skips ": ", ", ", or "; "
color = strtocolor(c + 1, &c); // +1 skips the space c++; // +1 skips the space
if ((color == RED && color_num > 12) || if ((*c == 'r' && cubes > 12) ||
(color == GREEN && color_num > 13) || (*c == 'g' && cubes > 13) ||
(color == BLUE && color_num > 14)) { (*c == 'b' && cubes > 14)) {
game_num = 0; game_num = 0;
} }
c = skip_color(c);
} }
sum += game_num; sum += game_num;
} }