make txns.txt to loop over txns in mempool

Doc.md

@@ -14,4 +14,7 @@ Second, we need to validate the transactions using that info, but then how do we
 
 Third,build the block
 Fourth, we need to find the nonce which passes difficulty and hence the hash
-We need to output the coinbase txn also
+We need to output the coinbase txn also
+
+
+// since cpp doesn't have a function for iterating over files in a directory had to make "txns.txt".

mine.cpp

@@ -1,11 +1,32 @@
-#include <iostream>//damn! the steam is really I/O stream!
+#include <iostream>//damn! the stream is really I/O stream!
+#include <fstream>
+#include <string>
+#include <vector>
 using namespace std;
 
 //create a serialise function to serialise txns
 
 int main() {
-    //use freopen etc. to read json files
+
     freopen("output.txt","w",stdout);
-    cout<<"Hello World\n";
+
+    ifstream myfile;
+    myfile.open("txns.txt");
+    string mystring;
+
+    vector<string> txns;
+
+    while (myfile.good()) {
+        getline(myfile,mystring);
+        txns.push_back(mystring);
+    }
+    myfile.close();
+
+    for (string txn: txns) {
+      string filename = "mempool/" + txn;
+      myfile.open(filename);
+      //getline(myfile,mystring);
+      //cout<<mystring<<'\n';
+    }
     return 0;
 }