Started on ABC051, finished a

atcoder/beginner_contests/abc051/Cargo.toml

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+[package]
+name = "abc051"
+version = "0.1.0"
+edition = "2021"
+
+# dependencies added to new project
+[dependencies]
+proconio = "*"
+
+[profile.release]
+lto = true
+panic = 'abort'

atcoder/beginner_contests/abc051/src/bin/a.rs

@@ -0,0 +1,14 @@
+use proconio::{input, marker::Chars};
+
+fn main() {
+    input! {
+        s: Chars,
+    };
+
+    println!(
+        "{} {} {}",
+        &s[..5].iter().collect::<String>(),
+        &s[6..13].iter().collect::<String>(),
+        &s[14..].iter().collect::<String>(),
+    );
+}

atcoder/beginner_contests/abc051/src/bin/b.rs

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+use proconio::input;
+
+fn solve(k: u32, s: u32) -> u32 {
+    let mut result = 0;
+
+    return result;
+}
+
+fn main() {
+    input! {
+        k: u32,
+        s: u32,
+    };
+
+    assert!(s <= 3 * k);
+    
+    println!("{}", solve(k, s));
+
+}

atcoder/beginner_contests/abc051/src/bin/c.rs

@@ -0,0 +1,5 @@
+use proconio::input;
+
+fn main() {
+    unimplemented!();
+}

atcoder/beginner_contests/abc051/src/bin/d.rs

@@ -0,0 +1,5 @@
+use proconio::input;
+
+fn main() {
+    unimplemented!();
+}