diff --git a/feladat3/feladat3.slnx b/feladat3/feladat3.slnx
index 6344232..353f8ac 100644
--- a/feladat3/feladat3.slnx
+++ b/feladat3/feladat3.slnx
@@ -3,5 +3,5 @@
     <Platform Name="x64" />
     <Platform Name="x86" />
   </Configurations>
-  <Project Path="feladat3/feladat3.vcxproj" />
+  <Project Path="feladat3/feladat3.vcxproj" Id="05ad42de-8f96-4351-b07d-784a20d752bd" />
 </Solution>
diff --git a/feladat3/feladat3/datasets.txt b/feladat3/feladat3/datasets.txt
index 9f323d6..339ae98 100644
--- a/feladat3/feladat3/datasets.txt
+++ b/feladat3/feladat3/datasets.txt
@@ -1,12 +1,12 @@
-C:\Users\danit\Desktop\cpp\feladat3\feladat3\dataset\testin5.dat
+dataset\testin5.dat
 
 
 C:\nonexistent.dum
-C:\Users\danit\Desktop\cpp\feladat3\feladat3\dataset\testin10.dat
+dataset\testin10.dat
 
-C:\Users\danit\Desktop\cpp\feladat3\feladat3\dataset\testin50.dat
-C:\Users\danit\Desktop\cpp\feladat3\feladat3\dataset\testin100.dat
+dataset\testin50.dat
+dataset\testin100.dat
 
-C:\Users\danit\Desktop\cpp\feladat3\feladat3\dataset\testin10000.dat
+dataset\testin10000.dat
 
 
diff --git a/feladat3/feladat3/feladat3.cpp b/feladat3/feladat3/feladat3.cpp
index bb1d1b7..b65a098 100644
--- a/feladat3/feladat3/feladat3.cpp
+++ b/feladat3/feladat3/feladat3.cpp
@@ -1,9 +1,12 @@
 // IFPQYY | Tóth Dániel Mátyás | V1
 #include <iostream>
 #include <fstream>
+#include <filesystem>
 #include "feladat3.h"
 using namespace std;
 
+static int CopyStr(char* dest, const char* src, const char* concat = "\0");
+
 int GetFilenames(int argc, char* argv[],
 		char infilenames[MYMAXFILES][MYMAXFN], 
 		char outfilenames[MYMAXFILES][MYMAXFN]) {
@@ -29,9 +32,8 @@ int GetFilenames(int argc, char* argv[],
 		ifstream inputfile(buf);
 		if (!inputfile.fail())
 		{
-			strncpy_s(infilenames[i], buf, strlen(buf)); //if these are not allowed I'm gonna blow up
-			strncpy_s(outfilenames[i], buf, strlen(buf));
-			strcat_s(outfilenames[i], ".srt");
+			CopyStr(infilenames[i], buf);
+			CopyStr(outfilenames[i], buf, ".srt");
 			cout << infilenames[i] << " " << outfilenames[i] << "\tOK\n";
 			i++;
 		}
@@ -42,19 +44,40 @@ int GetFilenames(int argc, char* argv[],
 	}
 	argifs.close();
 	int status = OK;
-	if (i == 0)
+	if (readAmount == 0)
 	{
 		status = NOK;
 		cout << "Ures\tNOK\n";
 	}
+	while (i < 5) {
+		infilenames[i][0] = '\0';
+		outfilenames[i][0] = '\0';
+		i++;
+	}
 	cout << "*DONE\n";
 	return status;
 }
+static int CopyStr(char* dest, const char* src, const char* concat) {
+	if (dest == nullptr || src == nullptr) {
+		return NOK;
+	}
+	int i = 0;
+	while (src[i] != '\0')
+	{
+		dest[i++] = src[i];
+	}
+	int j = 0;
+	while (concat[j] != '\0')
+	{
+		dest[i++] = concat[j++];
+	}
+	dest[i] = '\0';
+	return OK;
+}
 int SortFile(char* infn, char* outfn, unsigned char* buf,
 		unsigned short* pmin, unsigned short* pmax,
 		unsigned short* pavg, unsigned short* pn,
-		unsigned short bufsize = MYBUFSIZE, bool test = false) {
-
+		unsigned short bufsize, bool test) {
 	if (infn == nullptr || outfn == nullptr 
 		|| buf == nullptr || pmin == nullptr 
 		|| pmax == nullptr || pavg == nullptr 
@@ -62,12 +85,20 @@ int SortFile(char* infn, char* outfn, unsigned char* buf,
 	{
 		return NOK;
 	}
-	if (bufsize != 8192) //I guess?
+	if (bufsize != MYBUFSIZE) //I guess?
 	{
 		return NOK;
 	}
-}
 
-static int ReadFile(char* filename, int bufsize) {
+	ifstream argifs(infn, ios_base::binary);
+	if (!argifs.is_open())
+	{
+		return NOK;
+	}
 
+	int size = filesystem::file_size(infn);
+	cout << size;
+	short* allVals[MYMAXVALUE];
+
+	return OK;
 }
\ No newline at end of file
diff --git a/feladat3/feladat3/main.cpp b/feladat3/feladat3/main.cpp
index 02deaee..d041184 100644
--- a/feladat3/feladat3/main.cpp
+++ b/feladat3/feladat3/main.cpp
@@ -12,11 +12,11 @@ int main(int argc, char* argv[]) {
 	{
 		return(NOK);
 	}
-	/*for (int n = 0; (n < MYMAXFILES) && (infn[n][0] != '\0'); n++)
+	for (int n = 0; (n < MYMAXFILES) && (infn[n][0] != '\0'); n++)
 	{
 		if (SortFile(infn[n], outfn[n], buf, &minv, &maxv, &avgv, &nv) == NOK)
 			return(NOK);
-	}*/
+	}
 	/*cout << argc;
 	for (size_t i = 0; i < argc; i++)
 	{