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| author | June McEnroe <june@causal.agency> | 2018-12-05 01:51:11 -0500 |
|---|---|---|
| committer | June McEnroe <june@causal.agency> | 2020-11-22 00:14:25 -0500 |
| commit | eb2fee53e6de6873266944a4c47d748bc818ac69 (patch) | |
| tree | adba4fb0cfee685155fee1b74fb4b6c88616ec91 | |
| parent | Solve day 4 part 2 (diff) | |
| download | aoc-eb2fee53e6de6873266944a4c47d748bc818ac69.tar.gz aoc-eb2fee53e6de6873266944a4c47d748bc818ac69.zip | |
Solve day 5 part 1
| -rw-r--r-- | 2018/day05.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/2018/day05.c b/2018/day05.c new file mode 100644 index 0000000..5cb9366 --- /dev/null +++ b/2018/day05.c @@ -0,0 +1,17 @@ +#include <ctype.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +int main() { + char buf[50000]; + size_t len = fread(buf, 1, sizeof(buf), stdin); + for (size_t i = 0; i < len - 1; ++i) { + if (tolower(buf[i]) != tolower(buf[i + 1])) continue; + if (islower(buf[i]) == islower(buf[i + 1])) continue; + len -= 2; + memmove(&buf[i], &buf[i + 2], len - i); + i = (size_t)-1; + } + printf("%zu\n", len); +} |