Homeworks-2: task 2 has been completed

dtr200 · Jun 15, 2021 · bf5a574 · bf5a574
1 parent c3d6f31
commit bf5a574
Showing 1 changed file with 51 additions and 3 deletions.
diff --git a/homework-lecture-2/sequence-type.js b/homework-lecture-2/sequence-type.js
@@ -1,12 +1,60 @@
 function getSequenceType(list){
-    if(!list.length)
-        return 
+    if(!list.length) return;
 
     let prev = list[0];
+    let type = {
+        constant: false,
+        ascending: false,
+        weaklyAscending: false,
+        descending: false,
+        weaklyDescending: false
+    };
 
     for(let i = 1; i < list.length; i++){
-        if(list[i] >= prev)
+        if(list[i] > prev && 
+                !type.descending &&
+                !type.weaklyAscending &&
+                !type.weaklyDescending &&
+                !type.constant){               
+            type.ascending = true;
+            prev = list[i];
+        }
+        else if(list[i] < prev &&
+                !type.weaklyAscending &&
+                !type.weaklyDescending &&
+                !type.ascending &&
+                !type.constant){
+            type.descending = true;
+            prev = list[i];
+        }
+        else if(list[i] === prev &&
+                !type.descending &&
+                !type.ascending &&
+                !type.weaklyAscending &&
+                !type.weaklyDescending){
+            type.constant = true;
+            prev = list[i];        
+        }
+        else if(list[i] >= prev &&
+                !type.descending &&
+                !type.weaklyDescending){
+            type.weaklyAscending = true;
+            prev = list[i];
+        }
+        else if(list[i] <= prev &&
+                !type.ascending &&
+                !type.weaklyAscending){
+            type.weaklyDescending = true;
+            prev = list[i];
+        }
+        else{
+            return 'RANDOM';
+        }  
     }
+    return type.weaklyAscending ? 'WEAKLY ASCENDING' :
+           type.weaklyDescending ? 'WEAKLY DESCENDING' :
+           type.ascending ? 'ASCENDING' :
+           type.descending ? 'DESCENDING' : 'CONSTANT'
 }
 
 getSequenceType([