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diff --git a/old_C_code/stage1/src/Util/utils.c b/old_C_code/stage1/src/Util/utils.c
deleted file mode 100644
index 91ea075..0000000
--- a/old_C_code/stage1/src/Util/utils.c
+++ /dev/null
@@ -1,138 +0,0 @@
-#include "Util/utils.h"
-#include <math.h>
-#include <cgds/Vector.h>
-
-void free_work(Work_t* work)
-{
-	free(work->inputFileName);
-	free(work->ranks);
-	free(work);
-}
-
-void free_result(Result_t* result)
-{
-	free(result->medoids_ID);
-	free(result->medoids_ranks);
-	free(result);
-}
-
-char readInt(FILE* stream, int64_t* integer)
-{
-	*integer = 0;
-	char curChar = fgetc(stream);
-	int sign = (curChar == '-' ? -1 : 1);
-	while (curChar < '0' || curChar > '9')
-		curChar = fgetc(stream);
-	ungetc(curChar, stream);
-	while ((curChar = fgetc(stream)) >= '0' && curChar <= '9')
-		*integer = 10 * (*integer) + (int64_t) (curChar - '0');
-	(*integer) *= sign;
-	return curChar;
-}
-
-char readReal(FILE* stream, float* real)
-{
-	int64_t integerPart;
-	char nextChar = readInt(stream, &integerPart);
-	int64_t fractionalPart = 0;
-	int countZeros = 0;
-	if (nextChar == '.')
-	{
-		//need to count zeros
-		while ((nextChar = fgetc(stream)) == '0')
-			countZeros++;
-		if (nextChar >= '0' && nextChar <= '9')
-		{
-			ungetc(nextChar, stream);
-			nextChar = readInt(stream, &fractionalPart);
-		}
-	}
-	int64_t exponent = 0;
-	if (nextChar == 'e' || nextChar == 'E')
-		nextChar = readInt(stream, &exponent);
-	int64_t divisorForFractional = pow(10, floor(log10(fractionalPart > 0 ? fractionalPart : 1))+1);
-	*real = ( (float)integerPart 
-		+ (integerPart < 0 ? -1 : 1) * (float)fractionalPart/(divisorForFractional*pow(10,countZeros)) )
-			* pow(10,exponent);
-	return nextChar;
-}
-
-// convert n-bytes binary integers to uint32_t
-uint32_t bInt_to_uint(Byte* pInteger)
-{
-	uint32_t res;
-	memcpy(&res, pInteger, 4);
-	return res;
-}
-
-// serialize integers
-void write_int(uint32_t x, Byte* buffer)
-{
-	union {
-		uint32_t i;
-		char bytes[4];
-	} u;
-	u.i = x;
-	for (size_t i = 0; i < 4; i++)
-		buffer[i] = u.bytes[i];
-}
-
-//WARNING: assuming float is 32bits...
-// convert 4-bytes binary float to float
-float bReal_to_float(Byte* pFloat)
-{
-	float res;
-	memcpy(&res, pFloat, 4);
-	return res;
-}
-
-//WARNING: assuming float is 32bits...
-// serialize double with a NON-portable bytes order
-void write_real(float x, Byte* buffer)
-{
-	union {
-		float d;
-		char bytes[4];
-	} u;
-	u.d = x;
-	for (size_t i = 0; i < 4; i++)
-		buffer[i] = u.bytes[i];
-}
-
-// Expected size of a Work message in bytes:
-uint32_t get_packedWork_length(uint32_t nbSeriesInChunk)
-{
-	return NCHAR_FNAME + 4 + 4*nbSeriesInChunk + 4 + 4 + 4;
-}
-
-// Expected size of a Result message in bytes: (uint32_t is on 4 bytes)
-uint32_t get_packedResult_length(uint32_t nbClusters)
-{
-	return 4 + 4 * nbClusters + 4 * nbClusters;
-}
-
-// get metadata: nbSeries
-uint32_t get_nbSeries(const char* ifileName)
-{
-	FILE* ifile = fopen(ifileName, "rb");
-	fseek(ifile, 0, SEEK_SET);
-	Byte binaryInt[4];
-	size_t lengthRead = fread(binaryInt, 4, 1, ifile);
-	if (lengthRead != 1)
-		fprintf(stderr,"Warning: getting nbSeries from truncated binary file.\n");
-	fclose(ifile);
-	return bInt_to_uint(binaryInt);
-}
-
-// get metadata: tsLength
-uint32_t get_tsLength(const char* ifileName)
-{
-	FILE* ifile = fopen(ifileName, "rb");
-	fseek(ifile, 4, SEEK_SET);
-	Byte binaryInt[4];
-	size_t lengthRead = fread(binaryInt, 4, 1, ifile);
-	if (lengthRead != 1)
-		fprintf(stderr,"Warning: getting tsLength from truncated binary file.\n");
-	fclose(ifile);
-	return bInt_to_uint(binaryInt);
-}