Watch 10 video solutions for Count Items Matching a Rule, a easy level problem involving Array, String. This walkthrough by CodeClips with Abhishek Ranjan has 1,961 views views. Want to try solving it yourself? Practice on FleetCode or read the detailed text solution.
You are given an array items, where each items[i] = [typei, colori, namei] describes the type, color, and name of the ith item. You are also given a rule represented by two strings, ruleKey and ruleValue.
The ith item is said to match the rule if one of the following is true:
ruleKey == "type" and ruleValue == typei.ruleKey == "color" and ruleValue == colori.ruleKey == "name" and ruleValue == namei.Return the number of items that match the given rule.
Example 1:
Input: items = [["phone","blue","pixel"],["computer","silver","lenovo"],["phone","gold","iphone"]], ruleKey = "color", ruleValue = "silver" Output: 1 Explanation: There is only one item matching the given rule, which is ["computer","silver","lenovo"].
Example 2:
Input: items = [["phone","blue","pixel"],["computer","silver","phone"],["phone","gold","iphone"]], ruleKey = "type", ruleValue = "phone" Output: 2 Explanation: There are only two items matching the given rule, which are ["phone","blue","pixel"] and ["phone","gold","iphone"]. Note that the item ["computer","silver","phone"] does not match.
Constraints:
1 <= items.length <= 1041 <= typei.length, colori.length, namei.length, ruleValue.length <= 10ruleKey is equal to either "type", "color", or "name".