diff --git a/a.out b/a.out
new file mode 100755
index 0000000..a9697ee
Binary files /dev/null and b/a.out differ
diff --git a/driver.cpp b/driver.cpp
new file mode 100644
index 0000000..17ad3fb
--- /dev/null
+++ b/driver.cpp
@@ -0,0 +1,100 @@
+#include "split_service.h"
+
+int main()
+{
+   SplitService *ser = new SplitService(4);
+
+   User *U1 = new User(0, "u1", "Susmita", "sm@com", "11890");
+   ser->set_user_table("u1", U1);
+
+   User *U2 = new User(1, "u2", "Ayan", "ay@com", "11890");
+   ser->set_user_table("u2", U2);
+
+   User *U3 = new User(2, "u3", "Moumita", "mm@com", "11890");
+   ser->set_user_table("u3", U3);
+
+   User *U4 = new User(3, "u4", "Subhayan", "sb@com", "11890");
+   ser->set_user_table("u4", U4);
+
+   int cont = 0;
+   do{
+        cout << "Enter operation " << endl;
+        string op;
+        cin >> op;
+        if (op == "SHOW")
+        {
+           cout << "for a specific user?" << endl;
+           string ans;
+           cin >> ans;
+           if (ans == "YES" || ans == "Yes" || ans == "yes")
+             {
+                cout << "Enter user id" << endl;
+                string u;
+                cin >> u;
+                ser->SHOW(u, 0);
+             }
+           else
+             {
+                ser->SHOW_ALL();
+             }
+        }
+        else if (op == "EXPENSE")
+        {
+           int num = 0;
+           string payer;
+           vector <string> users;
+           string type;
+           int total;
+           cout << "Enter payer " << endl;
+           cin >> payer;
+           cout << "Enter total " << endl;
+           cin >> total;
+           cout << "Enter no of users " << endl;
+           cin >> num;
+           cout << "enter user_ids " << endl;
+           for (int i = 0; i<num; i++)
+           {
+              string u;
+              cin >> u;
+              users.push_back(u);
+           }
+           cout << "Enter type of expense, EXACT, EQUAL or PERCENT " << endl;
+           cin >> type;
+           if (type == "EQUAL")
+             ser->EXPENSE_EQUAL(total, payer, users);
+           else if (type == "EXACT")
+           {
+              cout << "Enter amounts " << endl;
+              vector <int> amounts;
+              for (int i = 0; i<num; i++)
+              {
+                 int amount;
+                 cin >> amount;
+                 amounts.push_back(amount);
+              }
+              ser->EXPENSE_EXACT(total, payer, users, amounts);
+           }
+           else if (type == "PERCENT")
+           {
+              cout << "Enter percents " << endl;
+              vector <float> percents;
+              for (int i = 0; i<num; i++)
+              {
+                 float percent;
+                 cin >> percent;
+                 percents.push_back(percent);
+              }
+              ser->EXPENSE_PERCENT(total, payer, users, percents);
+           }
+           else 
+             cout << "INVALID TYPE" << endl;
+        }
+        else
+          cout << "INVALID OPERTAION " << endl;
+
+        cout << "Press 1 to continue" << endl;
+        cin >> cont;
+   }while (cont == 1);
+   
+   return 0;
+}
diff --git a/output.txt b/output.txt
new file mode 100644
index 0000000..b461780
--- /dev/null
+++ b/output.txt
@@ -0,0 +1,207 @@
+Enter operation 
+SHOW  
+for a specific user?
+n
+No balances
+Press 1 to continue
+1
+Enter operation 
+SHOW
+for a specific user?
+YES
+Enter user id
+u1
+No balances
+Press 1 to continue
+1
+Enter operation 
+EXPENSE
+Enter payer 
+u2
+Enter total 
+1000
+Enter no of users 
+4
+enter user_ids 
+u1 u2 u3 u4
+Enter type of expense, EXACT, EQUAL or PERCENT 
+EQUAL
+Press 1 to continue
+1
+Enter operation 
+SHOW
+for a specific user?
+yes
+Enter user id
+u1
+u1 owes u2: 250
+Press 1 to continue
+1
+Enter operation 
+SHOW
+for a specific user?
+yes
+Enter user id
+u2
+u1 owes u2: 250
+u3 owes u2: 250
+u4 owes u2: 250
+Press 1 to continue
+1
+Enter operation 
+SHOW
+for a specific user?
+n
+u1 owes u2: 250
+u3 owes u2: 250
+u4 owes u2: 250
+Press 1 to continue
+1
+Enter operation 
+EXPENSE
+Enter payer 
+u3
+Enter total 
+2000
+Enter no of users 
+3
+enter user_ids 
+u1 u2 u4
+Enter type of expense, EXACT, EQUAL or PERCENT 
+EXACT
+Enter amounts 
+1000 500 500
+Press 1 to continue
+1
+Enter operation 
+SHOW
+for a specific user?
+yes
+Enter user id
+u3
+u1 owes u3: 1000
+u2 owes u3: 250
+u4 owes u3: 500
+Press 1 to continue
+1
+Enter operation 
+EXPENSE
+Enter payer 
+u1
+Enter total 
+1000
+Enter no of users 
+1
+enter user_ids 
+u3
+Enter type of expense, EXACT, EQUAL or PERCENT 
+PERCENT
+Enter percents 
+100
+Press 1 to continue
+1
+Enter operation 
+SHOW
+for a specific user?
+yes
+Enter user id
+u1
+u1 owes u2: 250
+Press 1 to continue
+1
+Enter operation 
+SHOW
+for a specific user?
+yes
+Enter user id
+u3
+u2 owes u3: 250
+u4 owes u3: 500
+Press 1 to continue
+1
+Enter operation 
+EXPENSE
+Enter payer 
+u2
+Enter total 
+250
+Enter no of users 
+1
+enter user_ids 
+u3
+Enter type of expense, EXACT, EQUAL or PERCENT 
+EXACT
+Enter amounts 
+250
+Press 1 to continue
+1
+Enter operation 
+SHOW
+for a specific user?
+n
+u1 owes u2: 250
+u4 owes u2: 250
+u4 owes u3: 500
+Press 1 to continue
+1
+Enter operation 
+EXPENSE
+Enter payer 
+u4
+Enter total 
+750
+Enter no of users 
+2
+enter user_ids 
+u2 u3
+Enter type of expense, EXACT, EQUAL or PERCENT 
+PERCENT
+Enter percents 
+25 70
+invalid_entry!!!
+Press 1 to continue
+1
+Enter operation 
+EXPENSE
+Enter payer 
+u4
+Enter total 
+750
+Enter no of users 
+2
+enter user_ids 
+u2 u3
+Enter type of expense, EXACT, EQUAL or PERCENT 
+EXACT
+Enter amounts 
+250 500
+Press 1 to continue
+1
+Enter operation 
+SHOW
+for a specific user?
+n
+u1 owes u2: 250
+Press 1 to continue
+1
+Enter operation 
+EXPENSE
+Enter payer 
+u1
+Enter total 
+250
+Enter no of users 
+1
+enter user_ids 
+u2
+Enter type of expense, EXACT, EQUAL or PERCENT 
+EQUAL
+Press 1 to continue
+1
+Enter operation 
+SHOW
+for a specific user?
+n
+No balances
+Press 1 to continue
+0
diff --git a/split_service.cpp b/split_service.cpp
new file mode 100644
index 0000000..fd89d32
--- /dev/null
+++ b/split_service.cpp
@@ -0,0 +1,150 @@
+#include "split_service.h"
+
+void SplitService::set_user_table(string user_id, User* t)
+{
+   user_table[user_id] = t;
+   users.push_back(user_id);
+}
+
+void SplitService::EXPENSE_EQUAL(int total, string payer, vector <string> table)
+{
+    int count = table.size();
+    int per_share = total/count;
+    unordered_map <string, User*>::iterator itr = user_table.find(payer);
+    if (itr == user_table.end())
+      {
+         cout << "no such user exists!! " << endl;
+         return;
+      }    
+    else
+      {
+        int row = itr->second->get_seq();
+        for (int i = 0; i < count; i++)
+           {
+              unordered_map <string, User*>::iterator itr1 = user_table.find(table[i]);
+              if (itr1 != user_table.end())
+                {
+                   int col = itr1->second->get_seq();
+                   expense_table[row][col] = expense_table[row][col] + per_share;
+                   expense_table[col][row] = expense_table[col][row] - per_share;
+                }
+           } 
+      }
+}
+
+void SplitService::EXPENSE_EXACT(int total, string payer, vector <string> table, vector<int> amount)
+{ 
+     int count = table.size();
+     int total_per = 0;
+     for (int i = 0; i < count; i++)
+     {
+         total_per += amount[i];
+     }
+     if (total_per != total)
+     {
+         cout << "invalid_entry!!!" << endl;
+         return;
+     }
+     unordered_map <string, User*>::iterator itr = user_table.find(payer);
+     if (itr == user_table.end())
+      {
+         cout << "no such user exists!! " << endl;
+         return;
+      }
+    else
+      {
+        int row = itr->second->get_seq();
+        for (int i = 0; i < count; i++)
+           {
+              unordered_map <string, User*>::iterator itr1 = user_table.find(table[i]);
+              if (itr1 != user_table.end())
+                {
+                   int col = itr1->second->get_seq();
+                   expense_table[row][col] = expense_table[row][col] + amount[i];
+                   expense_table[col][row] = expense_table[col][row] - amount[i];
+                }
+           }
+       }
+}
+
+void SplitService::EXPENSE_PERCENT(int total, string payer, vector <string> table, vector<float> percent)
+{
+     int count = table.size();
+     int total_per = 0;
+     for (int i = 0; i < count; i++)
+     {
+         total_per += percent[i];
+     }
+     if (total_per != 100)
+     {
+         cout << "invalid_entry!!!" << endl;
+         return;
+     }
+     unordered_map <string, User*>::iterator itr = user_table.find(payer);
+     if (itr == user_table.end())
+      {
+         cout << "no such user exists!! " << endl;
+         return;
+      }
+    else
+      {
+        int row = itr->second->get_seq();
+        for (int i = 0; i < count; i++)
+           {
+              float amount = float(percent[i]/100);
+              unordered_map <string, User*>::iterator itr1 = user_table.find(table[i]);
+              if (itr1 != user_table.end())
+                {
+                   int col = itr1->second->get_seq();
+                   expense_table[row][col] = expense_table[row][col] + (float(total) * amount);
+                   expense_table[col][row] = expense_table[col][row] - (float(total) * amount);
+                }
+           }
+       }
+}
+void SplitService::SHOW_ALL()
+{
+   int balance_exist = 0;
+   for (int i = 0; i<num_of_user; i++)
+    {
+       if (SHOW(users[i], 1) == 1)
+         balance_exist = 1;
+    }
+   if (balance_exist == 0)
+      cout << "No balances" << endl;
+}
+
+int SplitService::SHOW(string u, int all)
+{
+    unordered_map <string, User*>::iterator itr = user_table.find(u);
+    int balance_exist = 0;
+     if (itr == user_table.end())
+      {
+         cout << "no such user exists!! " << endl;
+         return 0;
+      }
+    int seq_no = itr->second->get_seq();
+    for (int i = 0; i< num_of_user; i++)
+     {
+         if (i != seq_no)
+          {
+             if (expense_table[seq_no][i] != 0)
+               {
+                  balance_exist = 1;
+                  if (expense_table[seq_no][i] > 0)
+                   {
+                      cout << users[i] << " owes " << u << ": " << expense_table[seq_no][i] << endl;
+                   }
+                  else 
+                   { 
+                      if (all == 0)
+                         cout << u << " owes " << users[i] << ": " << 0 - expense_table[seq_no][i] << endl;
+                   }
+              }
+          }
+     }
+     if (balance_exist == 0 && (all == 0))
+       cout << "No balances" << endl;
+     return balance_exist;
+}
+
diff --git a/split_service.h b/split_service.h
new file mode 100644
index 0000000..5906c41
--- /dev/null
+++ b/split_service.h
@@ -0,0 +1,40 @@
+#include<vector>
+#include "user.h"
+
+class SplitService
+{
+   /*** this map will contain all the user details with user id as key **/
+   unordered_map <string, User *> user_table;
+
+   /*** this table will contain all the expense details between users ***/
+   float **expense_table;
+
+   /*** this is a table of user ids with user seq no as index  **********/
+   vector<string> users;
+
+   int num_of_user;
+
+   public:
+         SplitService(int no)
+         {
+             num_of_user = no;
+             expense_table = new float*[num_of_user];
+             for (int i = 0; i<num_of_user; i++)
+             {
+                 expense_table[i] = new float[num_of_user];
+             }
+             for (int i = 0; i<num_of_user; i++)
+              {
+                  for (int j = 0; j < num_of_user; j++)
+                      expense_table[i][j] = 0.0;
+              }        
+         }
+         int SHOW(string u, int all);
+         void SHOW_ALL();
+         void set_user_table(string user_id, User * t);
+         void EXPENSE_EQUAL(int total, string payer, vector <string> table);
+         void EXPENSE_EXACT(int total, string payer, vector <string> table, vector<int> amount);
+         void EXPENSE_PERCENT(int total, string payer, vector <string> table, vector<float> amount);
+};
+
+
diff --git a/user.h b/user.h
new file mode 100644
index 0000000..765911d
--- /dev/null
+++ b/user.h
@@ -0,0 +1,31 @@
+#include <iostream>
+#include<string>
+#include<unordered_map>
+
+using namespace std;
+
+class User
+{
+   string user_id;
+   string email_id;
+   string mobile_no;
+   string name;
+   int seq_no;
+   public:
+        User(int s, string uid, string n, string email, string mob)
+        {
+             seq_no = s;
+             user_id = uid;
+             name = n;
+             email_id = email;
+             mobile_no = mob;
+        }
+        string get_user_id()
+        {
+             return user_id;
+        }
+        int get_seq()
+        {
+             return seq_no;
+        }
+};