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#include <stdio.h>
#define MAX(a, b) ((a) > (b) ? (a) : (b))
#define MIN(a, b) ((a) < (b) ? (a) : (b))
/*
USAGE: ./sol <inputfile>
*/
int get_my_score(char elf, char me)
{
int elf_choice = (int)(elf - 'A') + 1;
int my_choice = (int)(me - 'X') + 1;
int i_won = 0;
if (elf_choice == my_choice)
return my_choice + 3;
switch (elf_choice + my_choice)
{
case 3:
i_won = (elf_choice == 1);
break;
case 4:
i_won = (elf_choice == 3);
break;
case 5:
i_won = (elf_choice == 2);
break;
}
return my_choice + i_won * 6;
}
const int wins[3] = {2, 3, 1};
const int loss[3] = {3, 1, 2};
int get_my_score_2(char elf, char me)
{
int elf_choice = (int)(elf - 'A') + 1;
int outcome = (int)(me - 'X') + 1;
if (outcome == 2)
return elf_choice + 3;
if (outcome == 1)
return loss[elf_choice - 1];
return 6 + wins[elf_choice - 1];
}
int main(int argc, char *argv[])
{
char *fileName = argv[1];
FILE *file = fopen(fileName, "r");
char line[256];
char elf, me;
int score1 = 0;
int score2 = 0;
while (1)
{
int i = fscanf(file, "%c %c\n", &elf, &me);
if (i == EOF)
break;
score1 += get_my_score(elf, me);
score2 += get_my_score_2(elf, me);
}
printf("Score one: %d\n", score1);
printf("Score two: %d\n", score2);
fclose(file);
return 0;
}
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