diff --git a/Sorting/7Ex/main.o b/Sorting/7Ex/main.o
deleted file mode 100644
index c6ebb1f..0000000
Binary files a/Sorting/7Ex/main.o and /dev/null differ
diff --git a/Sorting/7Ex/quicksort.o b/Sorting/7Ex/quicksort.o
deleted file mode 100644
index b59dd0b..0000000
Binary files a/Sorting/7Ex/quicksort.o and /dev/null differ
diff --git a/Sorting/7Ex/seagwithsob.o b/Sorting/7Ex/seagwithsob.o
deleted file mode 100644
index 6e86ed7..0000000
Binary files a/Sorting/7Ex/seagwithsob.o and /dev/null differ
diff --git a/Sorting/7Ex/tools.c b/Sorting/7Ex/tools.c
index 7465f29..5b58c2b 100644
--- a/Sorting/7Ex/tools.c
+++ b/Sorting/7Ex/tools.c
@@ -141,12 +141,12 @@ bool more(double a, double b) {
 }
 
 int compare(const void * ufirst, const void * usecond) {
-	double first = (double)ufirst;
-	double second = (double)usecond;
+	double first = *(double *)ufirst;
+	double second = *(double *)usecond;
 
-	if ((first - second) > eps) {
+	if ((first - second) > exp) {
 		return 1;
-	} else ((second - first) > eps) {
+	} else if ((second - first) > exp) {
 		return -1;
 	} else {
 		return 0;
diff --git a/WorkingArrays/9Ex/makefile b/WorkingArrays/9Ex/makefile
index 556c520..52f7ed8 100644
--- a/WorkingArrays/9Ex/makefile
+++ b/WorkingArrays/9Ex/makefile
@@ -12,7 +12,6 @@ CFLAGS = -mfpmath=sse \
          -Wpointer-arith \
          -Wformat-security \
          -Wmissing-format-attribute \
-         -Wformat=1 \
          -Wwrite-strings \
          -Wcast-align \
          -Wno-long-long \
@@ -24,20 +23,19 @@ CFLAGS = -mfpmath=sse \
          -Wdeclaration-after-statement \
          -Wbad-function-cast \
          -Wnested-externs \
-		 -O3 \
-		 -D_DEBUG -g \
-		 -c
-
+         -O3 \
+         -D_DEBUG -g \
+         -c
 
 all: main.o grouping.o tools.o
-	gcc main.o grouping.o tools.o -lssp && del *.o 
-	a.exe
+	gcc main.o grouping.o tools.o -o a.out && rm -f *.o
+	./a.out
 
 main.o: main.c
-	gcc $(CFLAGS) main.c
+	gcc $(CFLAGS) main.c -o main.o
 
 grouping.o: grouping.c
-	gcc $(CFLAGS) grouping.c
+	gcc $(CFLAGS) grouping.c -o grouping.o
 
 tools.o: tools.c
-	gcc $(CFLAGS) tools.c
+	gcc $(CFLAGS) tools.c -o tools.o