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| author | Thomas Schmucker <ts@its1.de> | 2025-01-17 16:30:40 +0100 |
|---|---|---|
| committer | Thomas Schmucker <ts@its1.de> | 2025-01-17 16:30:40 +0100 |
| commit | 61ec97b74c1ea875034c8984d1a146e1c4046e67 (patch) | |
| tree | a0912da45921832c584751f23016484b6ff6499f | |
| parent | b8af8aa8a126b5b966b7d9f50ffec626e8aa1045 (diff) | |
| download | advent-of-code-61ec97b74c1ea875034c8984d1a146e1c4046e67.tar.gz advent-of-code-61ec97b74c1ea875034c8984d1a146e1c4046e67.tar.bz2 advent-of-code-61ec97b74c1ea875034c8984d1a146e1c4046e67.zip | |
aoc 2016, day 9
| -rw-r--r-- | 2016/src/day09.cpp | 10 |
1 files changed, 2 insertions, 8 deletions
diff --git a/2016/src/day09.cpp b/2016/src/day09.cpp index e0b0468..10bf640 100644 --- a/2016/src/day09.cpp +++ b/2016/src/day09.cpp | |||
| @@ -17,10 +17,7 @@ part1(string_view line) | |||
| 17 | { | 17 | { |
| 18 | size_t len = 0; | 18 | size_t len = 0; |
| 19 | for ( size_t i = 0; i != line.length(); ) { | 19 | for ( size_t i = 0; i != line.length(); ) { |
| 20 | size_t lhs = 0; | 20 | if ( size_t lhs = 0, rhs = 0; sscanf(&line[i], "(%zux%zu)", &lhs, &rhs) == 2 ) { |
| 21 | size_t rhs = 0; | ||
| 22 | |||
| 23 | if ( sscanf(&line[i], "(%zux%zu)", &lhs, &rhs) == 2 ) { | ||
| 24 | i = line.find(')', i) + 1 + lhs; | 21 | i = line.find(')', i) + 1 + lhs; |
| 25 | len += lhs * rhs; | 22 | len += lhs * rhs; |
| 26 | } | 23 | } |
| @@ -38,10 +35,7 @@ part2(string_view line) | |||
| 38 | function<size_t(string_view)> part2_rec = [&](string_view line) { | 35 | function<size_t(string_view)> part2_rec = [&](string_view line) { |
| 39 | size_t len = 0; | 36 | size_t len = 0; |
| 40 | for ( size_t i = 0; i != line.length(); ) { | 37 | for ( size_t i = 0; i != line.length(); ) { |
| 41 | size_t lhs = 0; | 38 | if ( size_t lhs = 0, rhs = 0; sscanf(&line[i], "(%zux%zu)", &lhs, &rhs) == 2 ) { |
| 42 | size_t rhs = 0; | ||
| 43 | |||
| 44 | if ( sscanf(&line[i], "(%zux%zu)", &lhs, &rhs) == 2 ) { | ||
| 45 | i = line.find(')', i) + 1; | 39 | i = line.find(')', i) + 1; |
| 46 | len += part2_rec({ &line[i], lhs }) * rhs; | 40 | len += part2_rec({ &line[i], lhs }) * rhs; |
| 47 | i += lhs; | 41 | i += lhs; |
