60 lines
1.1 KiB
C
60 lines
1.1 KiB
C
#include <stdio.h>
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#include <limits.h>
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#include <stdbool.h>
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unsigned int bin_to_int(char *buf, int size) {
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unsigned int r = 0;
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for (int i = 0; i < size; ++i) {
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r = r << 1;
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if (buf[i] == 'B' || buf[i] == 'R') {
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r++;
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}
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}
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return r;
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}
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int main(int argc, char *argv[])
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{
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if (argc < 2) {
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printf("Usage: %s <input file>\n", argv[0]);
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return 0;
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}
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FILE *fp = fopen(argv[1], "r");
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if (fp == NULL) {
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printf("Could not open file %s\n", argv[1]);
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return 1;
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}
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char buf[12];
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size_t i = 0;
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unsigned int ids[1024];
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unsigned int min_id = UINT_MAX;
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unsigned int max_id = 0;
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while (fgets(buf, sizeof(buf), fp) != NULL) {
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ids[i] = bin_to_int(buf, 10);
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if (min_id > ids[i]) {
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min_id = ids[i];
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}
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if (max_id < ids[i]) {
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max_id = ids[i];
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}
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i++;
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}
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printf("%u\n", max_id);
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fclose(fp);
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for (int id = min_id; id < max_id; ++id) {
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bool present = false;
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for (int j = 0; j < i; ++j) {
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present = present || (id == ids[j]);
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}
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if (!present) {
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printf("%u\n", id);
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break;
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}
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}
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return 0;
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}
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