diff --git a/2D_vector.cpp b/2D_vector.cpp
new file mode 100644
index 0000000..42cbfe4
--- /dev/null
+++ b/2D_vector.cpp
@@ -0,0 +1,31 @@
+//
+// Created by ankit on 12-09-2019.
+//
+
+#include <bits/stdc++.h>
+using namespace std;
+
+int main()
+{
+    int row, col;
+    cin >> row >> col;
+    vector< vector <int> >v;
+    v.resize(col,vector<int>(row));
+
+    for (int i = 0; i < row; i++)
+    {
+        for (int j = 0; j < col; j++)
+        {
+            cin >> v[i][j];
+        }
+    }
+
+    for (int i = 0; i < row; i++)
+    {
+        for (int j = 0; j < col; j++)
+        {
+            cout << v[i][j] << " ";
+        }
+        cout << endl;
+    }
+}
\ No newline at end of file
diff --git a/Age_Calculator.cpp b/Age_Calculator.cpp
index 6be2102..369b8b8 100644
--- a/Age_Calculator.cpp
+++ b/Age_Calculator.cpp
@@ -1,26 +1,25 @@
 //Program to check your age till date
 
 
-#include<iostream.h>
-#include<conio.h>
-void main()
+#include <iostream>
+using namespace std;
+int main()
 {
-int birth_month,birth_year;
-int current_month,current_year;
-int ageinyear,ageinmonth;
-cout<<"Age Calculator\n\n";
+    int birth_month, birth_year;
+    int current_month, current_year;
+    int ageinyear, ageinmonth;
+    cout << "Age Calculator\n\n";
 
-cout<<"\nEnter Your Birth Month(Eg:8): ";
-cin>>birth_month;
-cout<<"\nEnter Your Birth Year(Eg:1999): ";
-cin>>birth_year;
+    cout << "\nEnter Your Birth Month(Eg:8): ";
+    cin >> birth_month;
+    cout << "\nEnter Your Birth Year(Eg:1999): ";
+    cin >> birth_year;
 
-cout<<"\nEnter The Current Month(Eg:12): ";
-cin>>current_month;
-cout<<"\nEnter The Current Year(Eg:2020): ";
-cin>>current_year;
-ageinyear= ;
-ageinmonth= ;
-cout<<"\n\nYour Age is "<<ageinyear<<" Years And "<<ageinmonth<<" Months ";
-getch();
+    cout << "\nEnter The Current Month(Eg:12): ";
+    cin >> current_month;
+    cout << "\nEnter The Current Year(Eg:2020): ";
+    cin >> current_year;
+    ageinyear = current_year - birth_year;
+    ageinmonth = 12 - birth_month;
+    cout << "\n\nYour Age is " << ageinyear << " Years And " << ageinmonth << " Months ";
 }
diff --git a/Calculator.cpp b/Calculator.cpp
index aa82b4f..c37e743 100644
--- a/Calculator.cpp
+++ b/Calculator.cpp
@@ -1,10 +1,19 @@
 //Basic Calculator using C++
 
 # include <iostream>
+#include <cmath>
 using namespace std;
+
+template <typename T, typename U>
+T find_max(T a, U b)
+{
+    return a > b ? a : b;
+}
 int main()
 {
-    int ch,sum;
+    int ch;
+    float sum, sub, mul, div,max;
+    int mod;
     float num1, num2;
     cout << "Enter option \n 1.Addition \t 2. Subtraction \n 3.Multiplication \t 4. Division \n 5. Modulus \t 6. Maximum of two nos \n ";
     cin >> ch;
@@ -13,9 +22,35 @@ int main()
     switch(ch)
     {
         case 1:
-            sum=num1+num2;
-            cout<<"Sum of two numbers is "<<sum;
+            sum = num1 + num2;
+            cout << "Sum of two numbers is " << sum;
             break;
+
+        case 2:
+        	sub = (num1 - num2);
+        	cout << "Difference of two numbers is " << sub;
+        	break;
+
+        case 3:
+        	mul = num1 * num2;
+        	cout << "Product of two numbers is " << mul;
+        	break;
+
+        case 4:
+        	div = num1 / num2;
+        	cout << "Division of two numbers is " << div;
+        	break;
+
+        case 5:
+        	mod = fmod(num1, num2);
+        	cout << "Modulus of two number is " << mod;
+        	break;
+
+        case 6:
+        	max = find_max(num1, num2);
+        	cout << "Maximum number is " << max;
+        	break;
+
         default:
             // If the options is not 1-6, error message is shown
             cout << "Error! Option is not correct";
diff --git a/CheckCharacter.py b/CheckCharacter.py
index a507f6b..b1fbe60 100644
--- a/CheckCharacter.py
+++ b/CheckCharacter.py
@@ -1,3 +1,9 @@
 # A program to check if the a character is a Capital Letter, Small Letter,vowel,consonant, Digit or special Character .
 
 ch = input("Enter a character: ") #character input
+if((ch >= 'a' and ch <= 'z') or (ch >= 'A' and ch <= 'Z')): 
+    print("The Given Character ", ch, "is an Alphabet") 
+elif(ch >= '0' and ch <= '9'):
+    print("The Given Character ", ch, "is a Digit")
+else:
+    print("The Given Character ", ch, "is a Special Character")
diff --git a/Seriesplay.cpp b/Seriesplay.cpp
index 820932c..e6f81d3 100644
--- a/Seriesplay.cpp
+++ b/Seriesplay.cpp
@@ -1,4 +1,4 @@
-//Print the following Series using a menu driven program 
+//Print the following Series using a menu driven program
 //1. Fibonacci series
 //2. n natural numbers
 //3. n prime numbers
@@ -10,27 +10,170 @@
 //7. 1+2+6+24+120+.....
 //8. 1/2+2/3+3/4+4/5+....
 
-# include <iostream>
+#include <iostream>
 using namespace std;
+
+int fib(int n)
+{
+    if (n == 0 || n == 1)
+        return 1;
+    else
+        return fib(n - 1) + fib(n - 2);
+}
+
+void natural(int n)
+{
+    for (int i = 1; i <= n; ++i)
+    {
+        cout << i << " ";
+    }
+    cout << endl;
+}
+
+bool isPrime(int n)
+{
+    if (n <= 1)
+        return false;
+    for (int i = 2; i < n; i++)
+        if (n % i == 0)
+            return false;
+
+    return true;
+}
+void printPrime(int n)
+{
+    for (int i = 2; i <= n; i++) {
+        if (isPrime(i))
+            cout << i << " ";
+    }
+}
+
+void even_number(int n)
+{
+    for (int i = 0; i <= n; i = i + 2)
+    {
+        cout << i << " ";
+    }
+    cout << endl;
+}
+
+int createPalindrome(int input, int b, bool isOdd)
+{
+    int n = input;
+    int palin = input;
+    if (isOdd)
+        n /= b;
+    while (n > 0)
+    {
+        palin = palin * b + (n % b);
+        n /= b;
+    }
+    return palin;
+}
+void generatePalindromes(int n)
+{
+    int number;
+    for (int j = 0; j < 2; j++)
+    {
+        int i = 1;
+        while ((number = createPalindrome(i, 10, j % 2)) < n)
+        {
+            cout << number << " ";
+            i++;
+        }
+    }
+}
+
+void square_sum(int n)
+{
+    int sum = 0;
+    for (int i = 1; i <= n; ++i)
+    {
+        sum += i * i;
+    }
+    cout << sum << endl;
+}
+
+
+int fact(int n)
+{
+    if (n <= 0)
+        return 1;
+    else
+        return fact(n - 1) * n;
+}
+
+int sum_fact(int n)
+{
+    int sum1 = 0;
+    for (int i = 1; i <= n; ++i)
+    {
+        sum1 += fact(i);
+    }
+    cout << sum1 << endl;
+}
+
+int series(int n)
+{
+    int a = 1;
+    float sum_series = 0;
+    for (int i = 0; i < n; ++i)
+    {
+        sum_series += (float) a / (a + 1);
+        a++;
+    }
+    cout << sum_series << endl;
+}
 int main()
 {
     int ch;
-    
+
     cout << "Enter option \n";
     cout<<"1. Print Fibonacci series\n";
     cout<<"2. n natural numbers\n";
     cout<<"3. n prime numbers\n";
     cout<<"4. n even numbers\n";
     cout<<"5. n pallindrome numbers\n";
-    cout<<"6. 1+4+9+16+.....n";
+    cout<<"6. 1+4+9+16+.....\n";
     cout<<"7. 1+2+6+24+120+.....\n";
     cout<<"8. 1/2+2/3+3/4+4/5+....\n";
     cin >> ch;
-    
+    int n1;
+    cin >> n1;
     switch(ch)
     {
         case 1:
-            
+            cout << fib(n1);
+            break;
+
+        case 2:
+            natural(n1);
+            break;
+
+        case 3:
+            printPrime(n1);
+            break;
+
+        case 4:
+            even_number(n1);
+            break;
+
+        case 5:
+            generatePalindromes(n1);
+            break;
+
+        case 6:
+            square_sum(n1);
+            break;
+
+        case 7:
+            sum_fact(n1);
+            break;
+
+        case 8:
+            series(n1);
+            break;
+
         default:
             // If the options is not 1-8, error message is shown
             cout << "Error! Option is not correct";
diff --git a/binary_search1.cpp b/binary_search1.cpp
new file mode 100644
index 0000000..75ecdee
--- /dev/null
+++ b/binary_search1.cpp
@@ -0,0 +1,34 @@
+//
+// Created by ankit on 07-08-2019.
+//
+
+#include <bits/stdc++.h>
+using namespace std;
+
+typedef int ll;
+
+int main(void)
+{
+    ll n, x;
+    cin >> n >> x;
+    vector <ll> v;
+    ll input;
+    for (int i = 0; i < n; i++)
+    {
+        cin >> input;
+        v.push_back(input);
+    }
+    ll k = 0;
+    for (int b = n / 2; b >= 1; b /= 2)
+    {
+        while (k + b < n && v[k +  b] <= x)
+            k += b;
+    }
+
+    if (v[k] == x)
+    {
+        cout << "Element found at " << k + 1 << endl;
+    }
+    else
+        cout << "No element found" << endl;
+}
\ No newline at end of file
diff --git a/circular_rotation.cpp b/circular_rotation.cpp
new file mode 100644
index 0000000..0d3dfe7
--- /dev/null
+++ b/circular_rotation.cpp
@@ -0,0 +1,27 @@
+#include <bits/stdc++.h>
+using namespace std;
+
+int main()
+{
+    int n, k, q;
+    cin >> n >> k >> q;
+
+    deque <int> v;
+    int input;
+    for (int i = 0; i < n; i++)
+    {
+        cin >> input;
+        v.push_back(input);
+    }
+    for (int i = 0; i < k; i++)
+    {
+        v.push_front(v[n - 1]);
+    }
+
+    for (int i = 0; i < q; i++)
+    {
+        int m;
+        cin >> m;
+        cout << v[m] << endl;
+    }
+}
diff --git a/jump_search.cpp b/jump_search.cpp
new file mode 100644
index 0000000..79dc0e1
--- /dev/null
+++ b/jump_search.cpp
@@ -0,0 +1,59 @@
+//
+// Created by ankit on 15-07-2019.
+//
+
+#include <bits/stdc++.h>
+using namespace std;
+
+typedef long long int lli;
+
+int jumpSearch (vector <lli> v, lli n, lli x) {
+    lli step = sqrt(n);
+
+    lli prev = 0;
+
+    while (v[min(step, n) - 1] < x)
+    {
+        prev = step;
+        step += sqrt(n);
+
+        if (prev >= n)
+            return -1;
+    }
+
+    while (v[prev] < x)
+    {
+        prev++;
+
+        if (prev == min(step, n))
+            return -1;
+    }
+
+    if (v[prev] == x)
+        return prev;
+
+    return -1;
+}
+
+int main()
+{
+    lli t;
+    cin >> t;
+
+    for (int i = 0; i < t; i++)
+    {
+        lli n;
+        cin >> n;
+        vector <lli> v;
+        lli input;
+
+        for (int i = 0; i < n; i++)
+        {
+            cin >> input;
+            v.push_back(input);
+        }
+        lli k;
+        cin >> k;
+        cout << jumpSearch(v, n, k) << endl;
+    }
+}