init

problems/p9/Cargo.toml

@@ -0,0 +1,6 @@
+[package]
+name = "p9"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]

problems/p9/src/main.rs

@@ -0,0 +1,15 @@
+fn main() {
+    for a in 1..=1000 {
+        for b in 1..=a {
+            let equition = 1000000 - 2000 * (a + b) + 2 * a * b;
+            if equition == 0 {
+                println!("a:{a}, b:{b}");
+            }
+        }
+    }
+    let a = 375;
+    let b = 200;
+    let c = ((a * a + b * b) as f64).sqrt();
+    println!("{c}");
+    println!("{}", a * b * c as i32);
+}