From d8a3be1cb4e29fd29970b9e36302c0ff10dbf2db Mon Sep 17 00:00:00 2001 From: Curtis McEnroe Date: Wed, 5 Dec 2018 01:51:11 -0500 Subject: Solve day 5 part 1 --- 2018/day05.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 2018/day05.c (limited to '2018') 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 +#include +#include +#include + +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); +} -- cgit 1.4.1