diff options
Diffstat (limited to '2015/03/puzzle-2.awk')
| -rw-r--r-- | 2015/03/puzzle-2.awk | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/2015/03/puzzle-2.awk b/2015/03/puzzle-2.awk new file mode 100644 index 0000000..0857009 --- /dev/null +++ b/2015/03/puzzle-2.awk @@ -0,0 +1,11 @@ +BEGIN { sx = sy = rx = ry = 1; homes[sx][sy] = 1; acc = 1 } + { santa = santa ? 0 : 1 } +santa == 0 && $0 == "^" { if (!homes[rx][++ry]++) acc++; next } +santa == 0 && $0 == ">" { if (!homes[++rx][ry]++) acc++; next } +santa == 0 && $0 == "v" { if (!homes[rx][--ry]++) acc++; next } +santa == 0 && $0 == "<" { if (!homes[--rx][ry]++) acc++; next } +santa == 1 && $0 == "^" { if (!homes[sx][++sy]++) acc++; next } +santa == 1 && $0 == ">" { if (!homes[++sx][sy]++) acc++; next } +santa == 1 && $0 == "v" { if (!homes[sx][--sy]++) acc++; next } +santa == 1 && $0 == "<" { if (!homes[--sx][sy]++) acc++; next } +END { print acc } |