Add new BufferedScannerSolution for IO measurements.

Turns out is faster than the regular ScannerSolution but just by a small
margin, most likely because Scanner does buffering internally already.

And fix templates once more :/

Author: wkoder

io/BufferedScannerSolution.java

@@ -0,0 +1,32 @@
+import java.io.BufferedInputStream;
+import java.io.BufferedOutputStream;
+import java.io.InputStreamReader;
+import java.io.PrintWriter;
+import java.util.Scanner;
+
+public class BufferedScannerSolution implements Runnable {
+
+  private static void solve() {
+    long sum = 0;
+    int n = in.nextInt();
+    while (n-- > 0) {
+      sum += in.nextInt();
+    }
+    out.println(sum);
+  }
+
+  /** Template starts: */
+  @Override
+  public void run() {
+    solve();
+    out.flush();
+    System.exit(0);
+  }
+
+  private final static Scanner in = new Scanner(new InputStreamReader(new BufferedInputStream(System.in)));
+  private final static PrintWriter out = new PrintWriter(new BufferedOutputStream(System.out));
+
+  public static void main(String[] args) {
+    new Thread(null, new BufferedScannerSolution(), "Main", 1 << 26).start();
+  }
+}

io/measure.sh

@@ -15,7 +15,7 @@ measure_solution() {
 
 measure_file() {
   input_file=$1
-  declare -a solutions=("InputReaderSolution" "StringTokenizerSolution" "ScannerSolution")
+  declare -a solutions=("InputReaderSolution" "StringTokenizerSolution" "BufferedScannerSolution" "ScannerSolution")
   echo "Measuring solutions with file $input_file:"
   all_runtimes=
   for solution in "${solutions[@]}"; do

templates/InputReaderTemplate.java

@@ -21,7 +21,7 @@ public void run() {
   private final static PrintWriter out = new PrintWriter(new BufferedOutputStream(System.out));
 
   public static void main(String[] args) {
-    new Thread(null, new InputReaderSolution(), "Main", 1 << 26).start();
+    new Thread(null, new InputReaderTemplate(), "Main", 1 << 26).start();
   }
 
   private static class InputReader {

templates/ScannerTemplate.java

@@ -20,6 +20,6 @@ public void run() {
   private final static PrintWriter out = new PrintWriter(new BufferedOutputStream(System.out));
 
   public static void main(String[] args) {
-    new Thread(null, new ScannerSolution(), "Main", 1 << 26).start();
+    new Thread(null, new ScannerTemplate(), "Main", 1 << 26).start();
   }
 }

templates/StringTokenizerTemplate.java

@@ -19,7 +19,7 @@ public void run() {
   private final static PrintWriter out = new PrintWriter(new BufferedOutputStream(System.out));
 
   public static void main(String[] args) {
-    new Thread(null, new StringTokenizerSolution(), "Main", 1 << 26).start();
+    new Thread(null, new StringTokenizerTemplate(), "Main", 1 << 26).start();
   }
 
   private static long readLong() {