Data commit

Task/Count-the-coins/JavaScript/count-the-coins-1.js

@@ -0,0 +1,19 @@
+function countcoins(t, o) {
+    'use strict';
+    var targetsLength = t + 1;
+    var operandsLength = o.length;
+    t = [1];
+
+    for (var a = 0; a < operandsLength; a++) {
+        for (var b = 1; b < targetsLength; b++) {
+
+            // initialise undefined target
+            t[b] = t[b] ? t[b] : 0;
+
+            // accumulate target + operand ways
+            t[b] += (b < o[a]) ? 0 : t[b - o[a]];
+        }
+    }
+
+    return t[targetsLength - 1];
+}

Task/Count-the-coins/JavaScript/count-the-coins-2.js

@@ -0,0 +1,2 @@
+countcoins(100, [1,5,10,25]);
+242

Task/Count-the-coins/JavaScript/count-the-coins-3.js

@@ -0,0 +1,25 @@
+function countcoins(t, o) {
+    'use strict';
+    var operandsLength = o.length;
+    var solutions = 0;
+
+    function permutate(a, x) {
+
+        // base case
+        if (a === t) {
+            solutions++;
+        }
+
+        // recursive case
+        else if (a < t) {
+            for (var i = 0; i < operandsLength; i++) {
+                if (i >= x) {
+                    permutate(o[i] + a, i);
+                }
+            }
+        }
+    }
+
+    permutate(0, 0);
+    return solutions;
+}

Task/Count-the-coins/JavaScript/count-the-coins-4.js

@@ -0,0 +1,2 @@
+countcoins(100, [1,5,10,25]);
+242

Task/Count-the-coins/JavaScript/count-the-coins-5.js

@@ -0,0 +1,8 @@
+var amount = 100,
+    coin = [1, 5, 10, 25]
+var t = [1];
+for (t[amount] = 0, a = 1; a < amount; a++) t[a] = 0 // initialise t[0..amount]=[1,0,...,0]
+for (var i = 0, e = coin.length; i < e; i++)
+    for (var ci = coin[i], a = ci; a <= amount; a++)
+        t[a] += t[a - ci]
+document.write(t[amount])