Special Queries Problem Solved

Author: MohammadFahad1

.cph/.Special_Queries.cpp_6f20022d093f6d03937b7fa8b9f71f6c.prob

@@ -0,0 +1 @@
+{"name":"Special Queries","group":"HackerRank - Assignment 03 | Basic Data Structure | Batch 05","url":"https://www.hackerrank.com/contests/assignment-03-a-basic-data-structure-a-batch-05/challenges/special-queries-1-1","interactive":false,"memoryLimit":512,"timeLimit":4000,"tests":[{"input":"5\n0 rahim\n0 karim\n1\n0 sakib\n1\n","output":"rahim\nkarim\n","id":1723053436192},{"input":"8\n1\n0 embappe\n0 neymar\n1\n1\n0 messi\n1\n1\n","output":"Invalid\nembappe\nneymar\nmessi\nInvalid\n","id":1723053436120},{"id":1723053436160,"input":"6\n0 embappe\n0 embappe\n1\n1\n0 messi\n1\n","output":"embappe\nembappe\nmessi\n"}],"testType":"single","input":{"type":"stdin"},"output":{"type":"stdout"},"languages":{"java":{"mainClass":"Main","taskClass":"SpecialQueries"}},"batch":{"id":"fdae5f74-7d7c-4c92-8575-4b5d387da7ea","size":1},"srcPath":"f:\\Tutorials\\Video Tutorials\\Phitron\\3. Basic Data Structures\\Special_Queries.cpp"}

Special_Queries.bin

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+#include <bits/stdc++.h>
+using namespace std;
+
+int main()
+{
+    long int t;
+    cin >> t;
+    queue<string> q;
+    while (t--)
+    {
+        int x;
+        cin >> x;
+        if (x == 0)
+        {
+            string s;
+            cin >> s;
+            q.push(s);
+        }
+        else
+        {
+            if (!q.empty())
+            {
+                cout << q.front() << endl;
+                q.pop();
+            }
+            else
+            {
+                cout << "Invalid" << endl;
+            }
+        }
+    }
+
+    return 0;
+}