Data commit

Task/Greatest-subsequential-sum/Jsish/greatest-subsequential-sum.jsish

@@ -0,0 +1,37 @@
+/* Greatest Subsequential Sum, in Jsish */
+function sumValues(arr) {
+    var result = 0;
+    for (var i = 0, len = arr.length; i < len; i++) result += arr[i];
+    return result;
+}
+
+function greatestSubsequentialSum(population:array):array {
+    var maxValue = (population[0]) ? population[0] : 0;
+    var subsequence = [], greatest = [];
+
+    for (var i = 0, len = population.length; i < len; i++) {
+        for (var j = i; j < len; j++) {
+            subsequence = population.slice(i, j);
+            var value = sumValues(subsequence);
+            if (value > maxValue) {
+                maxValue = value;
+                greatest = subsequence;
+            };
+        }
+    }
+
+    return [maxValue, greatest];
+}
+
+if (Interp.conf('unitTest')) {
+    var gss = [-1,-2,3,5,6,-2,-1,4,-4,2,-1];
+;    gss;
+;    greatestSubsequentialSum(gss);
+}
+
+/*
+=!EXPECTSTART!=
+gss ==> [ -1, -2, 3, 5, 6, -2, -1, 4, -4, 2, -1 ]
+greatestSubsequentialSum(gss) ==> [ 15, [ 3, 5, 6, -2, -1, 4 ] ]
+=!EXPECTEND!=
+*/