Create 1131-maximum-of-absolute-value-expression.js

Author: everthis

1131-maximum-of-absolute-value-expression.js

@@ -0,0 +1,23 @@
+/**
+ * @param {number[]} arr1
+ * @param {number[]} arr2
+ * @return {number}
+ */
+var maxAbsValExpr = function(arr1, arr2) {
+    let n = arr1.length;
+    let combs = [
+      [1,1],[1,-1],[-1,1],[-1,-1]
+    ];
+    let result = -Infinity;
+    for(let [p,q] of combs) {
+      let max = -Infinity, min = Infinity;
+      for(let i=0; i < n; i++) {
+        let value = (p * arr1[i]) + (q * arr2[i]) + i;
+        max = Math.max(max,value);
+        min = Math.min(min,value);
+      };
+      result = Math.max(result, max-min);
+    };
+    return result;
+};
+