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+Qt 5 SDK Compilation Instruction---
+
+
+1. make a new folder as a directory u're gonna work on... EX) mkdir QtSliderSnniper
+2. cd QtSliderSnniper
+3. open geedit and copy/paste ur program... save it as main.cpp in that folder
+4. qmake -project (create the Qt project file)
+5. edit the .pro file as bellow...
+
+TEMPLATE = app
+TARGET = QtSliderSnniper
+#INCLUDEPATH += .
+# Input
+SOURCES += main.cpp
+
+
+6. qmake
+7. make
+8)./QtSliderSnniper