diff options
Diffstat (limited to '0013')
| -rw-r--r-- | 0013/Cargo.lock | 7 | ||||
| -rw-r--r-- | 0013/Cargo.toml | 6 | ||||
| -rw-r--r-- | 0013/src/main.rs | 33 |
3 files changed, 46 insertions, 0 deletions
diff --git a/0013/Cargo.lock b/0013/Cargo.lock new file mode 100644 index 0000000..5b1a871 --- /dev/null +++ b/0013/Cargo.lock @@ -0,0 +1,7 @@ +# This file is automatically @generated by Cargo. +# It is not intended for manual editing. +version = 3 + +[[package]] +name = "p13" +version = "0.1.0" diff --git a/0013/Cargo.toml b/0013/Cargo.toml new file mode 100644 index 0000000..ce536c4 --- /dev/null +++ b/0013/Cargo.toml @@ -0,0 +1,6 @@ +[package] +name = "p13" +version = "0.1.0" +edition = "2021" + +[dependencies] diff --git a/0013/src/main.rs b/0013/src/main.rs new file mode 100644 index 0000000..b5f8a62 --- /dev/null +++ b/0013/src/main.rs @@ -0,0 +1,33 @@ +impl Solution { + fn char_to_int(c: char) -> i32 { + match c { + 'I' => 1, + 'V' => 5, + 'X' => 10, + 'L' => 50, + 'C' => 100, + 'D' => 500, + 'M' => 1000, + _ => 0, + } + } + pub fn roman_to_int(s: String) -> i32 { + let mut sum = 0; + for i in 0..s.len() { + if i < s.len() - 1 { + if Self::char_to_int(s.as_bytes()[i as usize] as char) + < Self::char_to_int(s.as_bytes()[i+1 as usize] as char) { + sum = sum - Self::char_to_int(s.as_bytes()[i as usize] as char); + continue; + } + } + sum = sum + Self::char_to_int(s.as_bytes()[i as usize] as char); + } + sum + } +} + +struct Solution {} +fn main() { + println!("{}", Solution::roman_to_int("MCMXCIV".to_string())); +}
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