41 lines
1.0 KiB
C
41 lines
1.0 KiB
C
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#include <stdio.h>
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#include <stdlib.h>
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#define MAX_LENGTH 165
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char* skip_color(char* c) {
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switch (*c) {
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case 'r':
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return c + 3;
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case 'g':
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return c + 5;
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case 'b':
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return c + 4;
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}
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abort();
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}
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int main(void) {
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char buf[MAX_LENGTH];
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int game_num, color_num, sum, max_r, max_g, max_b;
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sum = 0;
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while (fgets(buf, MAX_LENGTH, stdin)) {
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char* c = buf;
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game_num = strtol(c + 5, &c, 10); // +5 skips the "Game "
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max_r = max_g = max_b = 0;
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while (*c != '\n') {
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color_num = strtol(c + 2, &c, 10); // +2 skips ": ", ", ", or "; "
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c++; // +1 skips the space
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max_r = (*c == 'r' && color_num > max_r) ? color_num : max_r;
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max_g = (*c == 'g' && color_num > max_g) ? color_num : max_g;
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max_b = (*c == 'b' && color_num > max_b) ? color_num : max_b;
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c = skip_color(c);
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}
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sum += max_r * max_g * max_b;
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}
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printf("%d\n", sum);
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return 0;
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}
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