diff options
| -rw-r--r-- | 2020/day02.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/2020/day02.c b/2020/day02.c new file mode 100644 index 0000000..597efde --- /dev/null +++ b/2020/day02.c @@ -0,0 +1,15 @@ +#include <stdio.h> +#include <stdlib.h> +int main(void) { + int valid = 0; + int l, u; + char c, p[256]; + while (EOF != scanf("%d-%d %c: %s\n", &l, &u, &c, p)) { + int n = 0; + for (int i = 0; p[i]; ++i) { + if (p[i] == c) n++; + } + if (n >= l && n <= u) valid++; + } + printf("%d\n", valid); +} |