diff --git a/src/main.rs b/src/main.rs
index 4388aea..a7bb043 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -31,7 +31,7 @@ fn find_memory_filler(system: &mut System, input: &Input) -> Option<Pid> {
     };
     if (used_memory / total_memory) >= input.kill_threshold {
         let mut memory_filler = system.process(Pid::from_u32(1)).unwrap();
-        for process in system.processes().values() {
+        for (_, process) in system.processes() {
             if process.memory() > memory_filler.memory() {
                 memory_filler = process;
             }
@@ -77,9 +77,15 @@ fn get_parameters() -> Input {
         |env_value: Option<String>| env_value.map(|env_value| env_value.parse::<bool>());
     let parse_env_value_between_zero_and_one = |env_value: Option<String>| {
         env_value.map(|env_value| {
-            env_value
-                .parse::<f64>()
-                .map(|parsed_value| parsed_value.clamp(0.0, 1.0))
+            env_value.parse::<f64>().map(|parsed_value| {
+                if parsed_value > 1.0 {
+                    return 1.0;
+                } else if parsed_value < 0.0 {
+                    return 0.0;
+                } else {
+                    parsed_value
+                }
+            })
         })
     };
     for (i, env_value) in env_values.iter().enumerate() {