diff --git a/bubblesort.c b/bubblesort.c
index a848827..af97c8e 100644
--- a/bubblesort.c
+++ b/bubblesort.c
@@ -17,5 +17,5 @@ void bubblesort(int* array, int length)
 				swapped++;
 			}
 		}
-	} while(swapped==1);
+	} while(swapped> 0);
 }
diff --git a/heapsort.c b/heapsort.c
index 668f4b7..7f9bfe5 100644
--- a/heapsort.c
+++ b/heapsort.c
@@ -43,7 +43,7 @@ void sift(int* array, int node, int length)
     }
 }
  
-void heapsort(int* array, int length)
+void heapsort2(int* array, int length)
 {
     int i = 0;
     int temp_value = 0;
diff --git a/heapsort.h b/heapsort.h
index 26b2349..9880bc1 100644
--- a/heapsort.h
+++ b/heapsort.h
@@ -1,7 +1,7 @@
 #ifndef __HEAPSORT__
 #define __HEAPSORT__
 
-void heapsort(int* array, int length);
+void heapsort2(int* array, int length);
 void generate_array(int* array, int length);
 void print_array(int* array, int length);
 
diff --git a/student_rank b/student_rank
new file mode 100755
index 0000000..5c3008f
Binary files /dev/null and b/student_rank differ
diff --git a/student_rank.c b/student_rank.c
index af84003..c6dc75a 100644
--- a/student_rank.c
+++ b/student_rank.c
@@ -55,7 +55,6 @@ int find_rank_student(int student_grade, int* grades_array, int students_number)
 {
     int position = -1;
     int i = 0;
-    bubblesort(grades_array,students_number);
     for(i = students_number-1; i >= 0; i--)
     {
         if(grades_array[i] == student_grade)
diff --git a/student_rank.dSYM/Contents/Info.plist b/student_rank.dSYM/Contents/Info.plist
new file mode 100644
index 0000000..551d405
--- /dev/null
+++ b/student_rank.dSYM/Contents/Info.plist
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+	<dict>
+		<key>CFBundleDevelopmentRegion</key>
+		<string>English</string>
+		<key>CFBundleIdentifier</key>
+		<string>com.apple.xcode.dsym.student_rank</string>
+		<key>CFBundleInfoDictionaryVersion</key>
+		<string>6.0</string>
+		<key>CFBundlePackageType</key>
+		<string>dSYM</string>
+		<key>CFBundleSignature</key>
+		<string>????</string>
+		<key>CFBundleShortVersionString</key>
+		<string>1.0</string>
+		<key>CFBundleVersion</key>
+		<string>1</string>
+	</dict>
+</plist>
diff --git a/student_rank.dSYM/Contents/Resources/DWARF/student_rank b/student_rank.dSYM/Contents/Resources/DWARF/student_rank
new file mode 100644
index 0000000..e4a1f54
Binary files /dev/null and b/student_rank.dSYM/Contents/Resources/DWARF/student_rank differ
diff --git a/student_rank.dSYM/Contents/Resources/Relocations/aarch64/student_rank.yml b/student_rank.dSYM/Contents/Resources/Relocations/aarch64/student_rank.yml
new file mode 100644
index 0000000..d2e5977
--- /dev/null
+++ b/student_rank.dSYM/Contents/Resources/Relocations/aarch64/student_rank.yml
@@ -0,0 +1,22 @@
+---
+triple:          'arm64-apple-darwin'
+binary-path:     student_rank
+relocations:
+  - { offsetInCU: 0x26, offset: 0x26, size: 0x8, addend: 0x0, symName: _generate_grades, symObjAddr: 0x0, symBinAddr: 0x10000348C, symSize: 0x88 }
+  - { offsetInCU: 0x52, offset: 0x52, size: 0x8, addend: 0x0, symName: _generate_grades, symObjAddr: 0x0, symBinAddr: 0x10000348C, symSize: 0x88 }
+  - { offsetInCU: 0xA0, offset: 0xA0, size: 0x8, addend: 0x0, symName: _generate_ranks, symObjAddr: 0x88, symBinAddr: 0x100003514, symSize: 0xC4 }
+  - { offsetInCU: 0xFC, offset: 0xFC, size: 0x8, addend: 0x0, symName: _free_array, symObjAddr: 0x14C, symBinAddr: 0x1000035D8, symSize: 0x68 }
+  - { offsetInCU: 0x13C, offset: 0x13C, size: 0x8, addend: 0x0, symName: _print_student_array, symObjAddr: 0x1B4, symBinAddr: 0x100003640, symSize: 0xA4 }
+  - { offsetInCU: 0x18A, offset: 0x18A, size: 0x8, addend: 0x0, symName: _find_rank_student, symObjAddr: 0x258, symBinAddr: 0x1000036E4, symSize: 0xAC }
+  - { offsetInCU: 0x1EA, offset: 0x1EA, size: 0x8, addend: 0x0, symName: _sort_students, symObjAddr: 0x304, symBinAddr: 0x100003790, symSize: 0x144 }
+  - { offsetInCU: 0x270, offset: 0x270, size: 0x8, addend: 0x0, symName: _main, symObjAddr: 0x448, symBinAddr: 0x1000038D4, symSize: 0x164 }
+  - { offsetInCU: 0x26, offset: 0x31C, size: 0x8, addend: 0x0, symName: _print_array, symObjAddr: 0x0, symBinAddr: 0x100003A38, symSize: 0xB4 }
+  - { offsetInCU: 0x33, offset: 0x329, size: 0x8, addend: 0x0, symName: _print_array, symObjAddr: 0x0, symBinAddr: 0x100003A38, symSize: 0xB4 }
+  - { offsetInCU: 0x54, offset: 0x34A, size: 0x8, addend: 0x0, symName: _print_array.count, symObjAddr: 0xC3C, symBinAddr: 0x100008004, symSize: 0x0 }
+  - { offsetInCU: 0x9D, offset: 0x393, size: 0x8, addend: 0x0, symName: _generate_array, symObjAddr: 0x2F0, symBinAddr: 0x100003D28, symSize: 0xAC }
+  - { offsetInCU: 0xBE, offset: 0x3B4, size: 0x8, addend: 0x0, symName: _generate_array.first_call, symObjAddr: 0x3B4, symBinAddr: 0x100008000, symSize: 0x0 }
+  - { offsetInCU: 0xF2, offset: 0x3E8, size: 0x8, addend: 0x0, symName: _sift, symObjAddr: 0xB4, symBinAddr: 0x100003AEC, symSize: 0x150 }
+  - { offsetInCU: 0x16A, offset: 0x460, size: 0x8, addend: 0x0, symName: _heapsort2, symObjAddr: 0x204, symBinAddr: 0x100003C3C, symSize: 0xEC }
+  - { offsetInCU: 0x26, offset: 0x4D9, size: 0x8, addend: 0x0, symName: _bubblesort, symObjAddr: 0x0, symBinAddr: 0x100003DD4, symSize: 0xE8 }
+  - { offsetInCU: 0x33, offset: 0x4E6, size: 0x8, addend: 0x0, symName: _bubblesort, symObjAddr: 0x0, symBinAddr: 0x100003DD4, symSize: 0xE8 }
+...