Various incomplete solutions

CodeChef/easy/HS08TEST/solve.php

@@ -0,0 +1,13 @@
+<?php
+while($s=explode(' ',trim(fgets(STDIN)))) {
+	
+	if($s[1]%5) {
+		echo $s[1];
+		} else {
+			$new = round($s[1]-$s[1]-0.5,2);
+			if($new) 
+				echo $new;
+				else 
+				echo $s[1];
+				}
+		}

CodeChef/easy/TEST/solve.php

@@ -0,0 +1,7 @@
+<?php
+echo fgets(STDIN);
+while($s = fgets(STDIN)) {
+    if(trim($s) == '42')
+	die;
+    echo $s;
+}