ABC 047, finished b and c

atcoder/beginner_contests/abc047/src/bin/b.rs

@@ -1,17 +1,33 @@
 use proconio::input;
-use std::cmp::max;
+use std::cmp::{min, max};
 
 fn main() {
     input!{
-        h: u32,
-        w: u32,
-        n: u32,
-        lines: [(u32, u32, u32); n],
+        h: i64,
+        w: i64,
+        n: i64,
+        lines: [(i64, i64, i64); n],
     };
 
-    let mut corners = ((0, 0), (w, h));
+    let mut corners = ((0, 0), (h, w));
 
-    let result = max(0,(corners.1.0 - corners.0.0) * (corners.1.1 - corners.0.1));
+    for (x, y, a) in lines {
+        match a {
+            1 => (corners.0).0 = max((corners.0).0, x),
+            2 => (corners.1).0 = min((corners.1).0, x),
+            3 => (corners.0).1 = max((corners.0).1, y),
+            4 => (corners.1).1 = min((corners.1).1, y),
+            _ => (),
+        }
+    }
+
+    let result;
+
+    if (corners.1).0 - (corners.0).0 > 0 && (corners.1).1 - (corners.0).1 > 0 {
+        result = ((corners.1).0 - (corners.0).0) * ((corners.1).1 - (corners.0).1);
+    } else {
+        result = 0;
+    }
 
     println!("{}", {result});
 }

atcoder/beginner_contests/abc047/src/bin/c.rs

@@ -1,5 +1,33 @@
 use proconio::input;
 
 fn main() {
-    todo!();
+    input!{
+        s: String,
+    };
+
+    let mut result = 0;
+    let mut white_segment;
+
+    let first = s.chars().next().unwrap();
+    if first == 'W' {
+        white_segment = true;
+    } else {
+        white_segment = false;
+    }
+
+    for c in s.chars() {
+        match c {
+            'W' => if !white_segment {
+                white_segment = true;
+                result += 1;
+            },
+            'B' => if white_segment {
+                result += 1;
+                white_segment = false;
+            },
+            _ => (),
+        }
+    }
+
+    println!("{}", result);
 }