tasks a-s

2013-04-10 23:57:08 -07:00 · 2013-04-10 23:57:08 -07:00 · b83f433714
commit b83f433714
parent 47bf37c096
12433 changed files with 156208 additions and 123 deletions
--- a/Task/Prime-decomposition/JavaScript/prime-decomposition-1.js
+++ b/Task/Prime-decomposition/JavaScript/prime-decomposition-1.js
@ -0,0 +1,39 @@
+function run_factorize(input, output) {
+    var n = new BigInteger(input.value, 10);
+    var TWO = new BigInteger("2", 10);
+    var divisor = new BigInteger("3", 10);
+    var prod = false;
+
+    if (n.compareTo(TWO) < 0)
+        return;
+
+    output.value = "";
+
+    while (true) {
+        var qr = n.divideAndRemainder(TWO);
+        if (qr[1].equals(BigInteger.ZERO)) {
+            if (prod)
+                output.value += "*";
+            else
+                prod = true;
+            output.value += "2";
+            n = qr[0];
+        }
+        else
+            break;
+    }
+
+    while (!n.equals(BigInteger.ONE)) {
+        var qr = n.divideAndRemainder(divisor);
+        if (qr[1].equals(BigInteger.ZERO)) {
+            if (prod)
+                output.value += "*";
+            else
+                prod = true;
+            output.value += divisor;
+            n = qr[0];
+        }
+        else
+            divisor = divisor.add(TWO);
+    }
+}