Added Tutorial for Even Odd 1

Dimik/even-odd-1/en.md

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+# Even Odd 1 
+
+## Hint: You just need to handle last bit 
+
+### Solution 
+* for each test case take the number as a string 
+* Check the last character of the string 
+* make it integer 
+* If its divisible by 2
+  * its a even number so print 'even'
+* if its not divisible by 2 
+  * its a odd number so print 'odd'
+
+
+**C++ Implementation**
+
+```
+#include<bits/stdc++.h>  // includes everything 
+using namespace std; 
+int main()
+{
+    int t;
+    cin>>t;
+    while(t--)   // taking input unless test case ends
+    {
+        string s;
+        cin>>s;
+        int t=s[s.size()-1]-'0';  // last digit of the string 
+        if(t%2==0)
+        {
+            cout<<"even"<<endl;
+        }
+        else
+        {
+            cout<<"odd"<<endl;
+        }
+    }
+}
+```