Clean old data c++ when i were student

clean_data/merge_data.cpp

@@ -0,0 +1,84 @@
+#include <iostream>
+#include <fstream>
+#include <string>
+#include <map>
+
+using namespace std;
+void find(string word) {
+    string line;
+    int count = 0;
+
+    ifstream myfile ("/Users/swe_mini/Desktop/a.txt");
+
+
+    if (myfile.is_open())
+
+    {
+        while(getline(myfile, line)){
+
+            if(line.find(word) != string::npos){
+                //cout << word << endl;
+                count ++;
+
+
+            }
+
+        }
+
+        cout <<"its -- > "<<count << endl;
+
+
+
+
+        myfile.close();
+
+    }
+
+    else cout << "Unable to open file";
+}
+
+int main () {
+
+    string line;
+    //string word = "elder	High	High School	Wife	relative	Female	gain	relax	United-States	>50K";
+    int count = 0;
+
+
+    typedef map<string, int> line_record;
+    line_record lines;
+    int line_number = 1;
+
+
+    ifstream mergeFile ("/Users/swe_mini/Desktop/merge.txt");
+    ifstream myfile ("/Users/swe_mini/Desktop/a.txt");
+
+    if (mergeFile.is_open())
+    {
+        while ( getline (mergeFile,line) )
+        {
+            line_record::iterator existing = lines.find(line);
+            if(existing != lines.end())
+            {
+                existing->second = (-1);
+
+            } else
+            {
+                lines.insert(make_pair(line,line_number));
+                ++line_number;
+
+                find(line);
+                count++;
+            }
+
+
+
+        }
+        mergeFile.close();
+    }
+
+    else cout << "Unable to open file";
+
+
+    return 0;
+
+}