New Problem Solution - "1832. Check if the Sentence Is Pangram"

haoel · haoel · commit 0be935a8aad7 · 2021-04-20T18:23:22.000+08:00
diff --git a/README.md b/README.md
@@ -9,6 +9,7 @@ LeetCode
 
 | # | Title | Solution | Difficulty |
 |---| ----- | -------- | ---------- |
+|1832|[Check if the Sentence Is Pangram](https://leetcode.com/problems/check-if-the-sentence-is-pangram/) | [C++](./algorithms/cpp/checkIfTheSentenceIsPangram/CheckIfTheSentenceIsPangram.cpp)|Easy|
 |1829|[Maximum XOR for Each Query](https://leetcode.com/problems/maximum-xor-for-each-query/) | [C++](./algorithms/cpp/maximumXorForEachQuery/MaximumXorForEachQuery.cpp)|Medium|
 |1828|[Queries on Number of Points Inside a Circle](https://leetcode.com/problems/queries-on-number-of-points-inside-a-circle/) | [C++](./algorithms/cpp/queriesOnNumberOfPointsInsideACircle/QueriesOnNumberOfPointsInsideACircle.cpp)|Medium|
 |1827|[Minimum Operations to Make the Array Increasing](https://leetcode.com/problems/minimum-operations-to-make-the-array-increasing/) | [C++](./algorithms/cpp/minimumOperationsToMakeTheArrayIncreasing/MinimumOperationsToMakeTheArrayIncreasing.cpp)|Easy|
diff --git a/algorithms/cpp/checkIfTheSentenceIsPangram/CheckIfTheSentenceIsPangram.cpp b/algorithms/cpp/checkIfTheSentenceIsPangram/CheckIfTheSentenceIsPangram.cpp
@@ -0,0 +1,41 @@
+// Source : https://leetcode.com/problems/check-if-the-sentence-is-pangram/
+// Author : Hao Chen
+// Date   : 2021-04-20
+
+/***************************************************************************************************** 
+ *
+ * A pangram is a sentence where every letter of the English alphabet appears at least once.
+ * 
+ * Given a string sentence containing only lowercase English letters, return true if sentence is a 
+ * pangram, or false otherwise.
+ * 
+ * Example 1:
+ * 
+ * Input: sentence = "thequickbrownfoxjumpsoverthelazydog"
+ * Output: true
+ * Explanation: sentence contains at least one of every letter of the English alphabet.
+ * 
+ * Example 2:
+ * 
+ * Input: sentence = "leetcode"
+ * Output: false
+ * 
+ * Constraints:
+ * 
+ * 	1 <= sentence.length <= 1000
+ * 	sentence consists of lowercase English letters.
+ ******************************************************************************************************/
+
+class Solution {
+public:
+    bool checkIfPangram(string sentence) {
+        bool stat[26] = {false};
+        for(auto& c: sentence) {
+            stat[c - 'a'] = true;
+        }
+        for(auto& s : stat) {
+            if (!s) return false;
+        }
+        return true;
+    }
+};
