+\usepackage{algorithm}
+\usepackage{algorithmic}
+\usepackage{pdflscape}
+\usepackage{multirow,longtable}
+\usepackage{amsmath,mathtools}
+\usepackage{amssymb}
+\usepackage[standard]{ntheorem}
+\usepackage{stmaryrd}
+\usepackage[utf8]{inputenc}
+\usepackage{tikz}
+\usetikzlibrary{shapes,arrows}
+