{"id":454,"date":"2015-12-09T15:48:05","date_gmt":"2015-12-09T12:48:05","guid":{"rendered":"http:\/\/java.mazurok.com\/?p=454"},"modified":"2021-09-04T22:40:12","modified_gmt":"2021-09-04T19:40:12","slug":"%d0%be%d0%b1%d1%80%d0%b0%d1%82%d0%bd%d0%b0%d1%8f-%d0%bf%d0%be%d0%bb%d1%8c%d1%81%d0%ba%d0%b0%d1%8f-%d0%bd%d0%be%d1%82%d0%b0%d1%86%d0%b8%d1%8f","status":"publish","type":"post","link":"https:\/\/java.mazurok.com\/?p=454","title":{"rendered":"\u041e\u0431\u0440\u0430\u0442\u043d\u0430\u044f \u043f\u043e\u043b\u044c\u0441\u043a\u0430\u044f \u043d\u043e\u0442\u0430\u0446\u0438\u044f"},"content":{"rendered":"<p>\u041f\u0435\u0440\u0435\u0434\u043e \u043c\u043d\u043e\u0439 \u0441\u0442\u043e\u044f\u043b\u0438 \u0437\u0430\u0434\u0430\u0447\u0438:<\/p>\n<ul>\n<li>\u043f\u0435\u0440\u0435\u0432\u0435\u0441\u0442\u0438 \u0432\u044b\u0440\u0430\u0436\u0435\u043d\u0438\u0435 \u0432 \u043e\u0431\u0440\u0430\u0442\u043d\u0443\u044e \u043f\u043e\u043b\u044c\u0441\u043a\u0443\u044e \u043d\u043e\u0442\u0430\u0446\u0438\u044e;<\/li>\n<li>\u043f\u043e\u0441\u0447\u0438\u0442\u0430\u0442\u044c \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 \u0432\u044b\u0440\u0430\u0436\u0435\u043d\u0438\u044f.<\/li>\n<\/ul>\n<p>\u0422\u0430\u043a\u0436\u0435 \u044f \u0440\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043b\u0430 \u0443\u043d\u0430\u0440\u043d\u044b\u0439 \u043c\u0438\u043d\u0443\u0441, \u0434\u0435\u043b\u0435\u043d\u0438\u0435 \u0438 \u0444\u0443\u043d\u043a\u0446\u0438\u0438 cube(), sqrt(), pow10().<\/p>\n<table style=\"height: 182px\" width=\"756\">\n<tbody>\n<tr>\n<td>\u0412\u044b\u0440\u0430\u0436\u0435\u043d\u0438\u0435<\/td>\n<td>\u041e\u0431\u0440\u0430\u0442\u043d\u0430\u044f \u043f\u043e\u043b\u044c\u0441\u043a\u0430\u044f \u043d\u043e\u0442\u0430\u0446\u0438\u044f<\/td>\n<td>\u0420\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442<\/td>\n<\/tr>\n<tr>\n<td>15 * -(3 &#8212; 4)<\/td>\n<td>15 3 4 &#8212; u- *<\/td>\n<td>15<\/td>\n<\/tr>\n<tr>\n<td>sqrt(4) + (8 * 0.5)<\/td>\n<td>4 sqrt 8 0.5 * +<\/td>\n<td>6<\/td>\n<\/tr>\n<tr>\n<td>-cube(-3)<\/td>\n<td>3 u- cube u-<\/td>\n<td>27<\/td>\n<\/tr>\n<tr>\n<td>92 \/ 10<\/td>\n<td>92 10 \/<\/td>\n<td>9.2<\/td>\n<\/tr>\n<tr>\n<td>pow10(2) &#8212; 95 + 4 * 8<\/td>\n<td>2 pow10 95 &#8212; 4 8 * +<\/td>\n<td>37<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>\u0410\u043b\u0433\u043e\u0440\u0438\u0442\u043c \u043f\u0435\u0440\u0435\u0432\u043e\u0434\u0430 \u0432 \u043e\u0431\u0440\u0430\u0442\u043d\u0443\u044e \u043f\u043e\u043b\u044c\u0441\u043a\u0443\u044e \u0437\u0430\u043f\u0438\u0441\u044c:<\/strong><\/p>\n<ul>\n<li>\u0441\u0447\u0438\u0442\u044b\u0432\u0430\u0435\u043c \u043f\u043e\u043e\u0447\u0435\u0440\u0451\u0434\u043d\u043e \u0432\u0441\u0435 \u043b\u0435\u043a\u0441\u0435\u043c\u044b, \u043f\u043e\u043f\u0443\u0442\u043d\u043e \u0443\u0431\u0438\u0440\u0430\u044f \u043f\u0440\u043e\u0431\u0435\u043b\u044b;<\/li>\n<li>\u0435\u0441\u043b\u0438 \u043b\u0435\u043a\u0441\u0435\u043c\u0430 &#8212; \u044d\u0442\u043e \u0447\u0438\u0441\u043b\u043e \u0438\u043b\u0438 \u043f\u0435\u0440\u0435\u043c\u0435\u043d\u043d\u0430\u044f, \u0442\u043e \u0434\u043e\u0431\u0430\u0432\u043b\u044f\u0435\u043c \u0435\u0451 \u0432 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0439 \u0441\u043f\u0438\u0441\u043e\u043a;<\/li>\n<li>\u0435\u0441\u043b\u0438 \u043b\u0435\u043a\u0441\u0435\u043c\u0430 &#8212; \u044d\u0442\u043e \u0444\u0443\u043d\u043a\u0446\u0438\u044f, \u0442\u043e \u0434\u043e\u0431\u0430\u0432\u043b\u044f\u0435\u043c \u0435\u0451 \u0432 \u0441\u0442\u044d\u043a;<\/li>\n<li>\u0435\u0441\u043b\u0438 \u043b\u0435\u043a\u0441\u0435\u043c\u0430 &#8212; \u044d\u0442\u043e \u043e\u0442\u043a\u0440\u044b\u0432\u0430\u044e\u0449\u0430\u044f \u0441\u043a\u043e\u0431\u043a\u0430, \u0442\u043e \u0434\u043e\u0431\u0430\u0432\u043b\u044f\u0435\u043c \u0435\u0451 \u0432 \u0441\u0442\u044d\u043a;<\/li>\n<li>\u0435\u0441\u043b\u0438 \u043b\u0435\u043a\u0441\u0435\u043c\u0430 &#8212; \u044d\u0442\u043e \u0437\u0430\u043a\u0440\u044b\u0432\u0430\u044e\u0449\u0430\u044f \u0441\u043a\u043e\u0431\u043a\u0430, \u0442\u043e:\n<ul>\n<li>\u043f\u043e\u043c\u0435\u0449\u0430\u0435\u043c \u044d\u043b\u0435\u043c\u0435\u043d\u0442\u044b \u0438\u0437 \u0441\u0442\u044d\u043a\u0430 \u0432 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0438\u0440\u0443\u044e\u0449\u0443\u044e \u0441\u0442\u0440\u043e\u043a\u0443 \u043f\u043e\u043a\u0430 \u043d\u0435 \u0432\u0441\u0442\u0440\u0435\u0442\u0438\u043c \u043e\u0442\u043a\u0440\u044b\u0432\u0430\u044e\u0449\u0443\u044e \u0441\u043a\u043e\u0431\u043a\u0443, \u043f\u0440\u0438\u0442\u043e\u043c \u043e\u0442\u043a\u0440\u044b\u0432\u0430\u044e\u0449\u0430\u044f \u0441\u043a\u043e\u0431\u043a\u0430 \u0443\u0434\u0430\u043b\u044f\u0435\u0442\u0441\u044f \u0438\u0437 \u0441\u0442\u044d\u043a\u0430, \u043d\u043e \u0432 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0438\u0440\u0443\u044e\u0449\u0443\u044e \u0441\u0442\u0440\u043e\u043a\u0443 \u043d\u0435 \u0434\u043e\u0431\u0430\u0432\u043b\u044f\u0435\u0442\u0441\u044f;<\/li>\n<li>\u0435\u0441\u043b\u0438 \u043d\u0430 \u0432\u0435\u0440\u0448\u0438\u043d\u0435 \u0441\u0442\u044d\u043a\u0430 \u043e\u043a\u0430\u0437\u044b\u0432\u0430\u0435\u0442\u0441\u044f \u0441\u0438\u043c\u0432\u043e\u043b \u0444\u0443\u043d\u043a\u0446\u0438\u0438, \u0442\u043e \u043c\u044b \u043f\u043e\u043c\u0435\u0449\u0430\u0435\u043c \u0435\u0433\u043e \u0438\u0437 \u0441\u0442\u044d\u043a\u0430 \u0432 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0438\u0440\u0443\u044e\u0449\u0443\u044e \u0441\u0442\u0440\u043e\u043a\u0443;<\/li>\n<li>\u0435\u0441\u043b\u0438 \u043e\u0442\u043a\u0440\u044b\u0432\u0430\u044e\u0449\u0430\u044f \u0441\u043a\u043e\u043a\u0430 \u043d\u0435 \u0431\u044b\u043b\u0430 \u0432\u0441\u0442\u0440\u0435\u0447\u0435\u043d\u0430, \u0442\u043e \u0441\u043a\u043e\u0431\u043a\u0438 \u043d\u0435 \u0441\u043e\u0433\u043b\u0430\u0441\u043e\u0432\u0430\u043d\u044b.<\/li>\n<\/ul>\n<\/li>\n<li>\u0435\u0441\u043b\u0438 \u043b\u0435\u043a\u0441\u0435\u043c\u0430 &#8212; \u044d\u0442\u043e \u043e\u043f\u0435\u0440\u0430\u0442\u043e\u0440, \u0442\u043e:\n<ul>\n<li>\u0435\u0441\u043b\u0438 \u044d\u0442\u043e \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0438\u0439 \u0441\u0438\u043c\u0432\u043e\u043b \u0432\u044b\u0440\u0430\u0436\u0435\u043d\u0438\u044f, \u0442\u043e \u0432\u044b\u0440\u0430\u0436\u0435\u043d\u0438\u0435 \u043d\u0435\u043a\u043e\u0440\u0440\u0435\u043a\u0442\u043d\u043e;<\/li>\n<li>\u0435\u0441\u043b\u0438 \u044d\u0442\u043e \u0443\u043d\u0430\u0440\u043d\u044b\u0439 \u043c\u0438\u043d\u0443\u0441, \u0442\u043e \u0434\u043e\u0431\u0430\u0432\u043b\u044f\u0435\u043c \u0435\u0433\u043e \u0432 \u0441\u0442\u044d\u043a;<\/li>\n<li>\u0438\u043d\u0430\u0447\u0435:\n<ul>\n<li>\u0432\u044b\u0442\u0430\u043b\u043a\u0438\u0432\u0430\u0435\u043c \u0432\u0435\u0440\u0445\u043d\u0438\u0435 \u044d\u043b\u0435\u043c\u0435\u043d\u0442\u044b \u0441\u0442\u044d\u043a\u0430 \u0432 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0438\u0440\u0443\u044e\u0449\u0443\u044e \u0441\u0442\u0440\u043e\u043a\u0443, \u043f\u043e\u043a\u0430 \u043f\u0440\u0438\u043e\u0440\u0438\u0442\u0435\u0442 \u0442\u0435\u043a\u0443\u0449\u0435\u0433\u043e \u043e\u043f\u0435\u0440\u0430\u0442\u043e\u0440\u0430 \u043c\u0435\u043d\u044c\u0448\u0435 \u043b\u0438\u0431\u043e \u0440\u0430\u0432\u0435\u043d \u043f\u0440\u0438\u043e\u0440\u0438\u0442\u0435\u0442\u0443 \u043e\u043f\u0435\u0440\u0430\u0442\u043e\u0440\u0430, \u043d\u0430\u0445\u043e\u0434\u044f\u0449\u0435\u0433\u043e\u0441\u044f \u043d\u0430 \u0432\u0435\u0440\u0438\u043d\u0435 \u0441\u0442\u044d\u043a\u0430;<\/li>\n<li>\u043f\u043e\u043c\u0435\u0449\u0430\u0435\u043c \u0442\u0435\u043a\u0443\u0449\u0438\u0439 \u043e\u043f\u0435\u0440\u0430\u0442\u043e\u0440 \u0432 \u0441\u0442\u044d\u043a;<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\u043a\u043e\u0433\u0434\u0430 \u0432\u0441\u0435 \u0434\u0430\u043d\u043d\u044b\u0435 \u0441\u0447\u0438\u0442\u0430\u043d\u044b, \u0432\u044b\u0442\u0430\u043b\u043a\u0438\u0432\u0430\u0435\u043c \u0432\u0441\u0435 \u044d\u043b\u0435\u043c\u0435\u043d\u0442\u044b \u0441\u0442\u044d\u043a\u0430 \u0432 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0438\u0440\u0443\u044e\u0449\u0443\u044e \u0441\u0442\u0440\u043e\u043a\u0443; \u0435\u0441\u043b\u0438 \u0432 \u0441\u0442\u044d\u043a\u0435 \u043e\u043a\u0430\u0437\u0430\u043b\u0438\u0441\u044c \u0441\u0438\u043c\u0432\u043e\u043b\u044b \u043d\u0435 \u043e\u043f\u0435\u0440\u0430\u0442\u043e\u0440\u043e\u0432, \u0442\u043e \u0441\u043a\u043e\u0431\u043a\u0438 \u043d\u0435 \u0441\u043e\u0433\u043b\u0430\u0441\u043e\u0432\u0430\u043d\u044b.<\/li>\n<\/ul>\n<p><strong>\u0410\u043b\u0433\u043e\u0440\u0438\u0442\u043c \u0432\u044b\u0447\u0438\u0441\u043b\u0435\u043d\u0438\u044f \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f \u0432\u044b\u0440\u0430\u0436\u0435\u043d\u0438\u044f \u0432 \u043e\u0431\u0440\u0430\u0442\u043d\u043e\u0439 \u043f\u043e\u043b\u044c\u0441\u043a\u043e\u0439 \u043d\u043e\u0442\u0430\u0446\u0438\u0438:<\/strong><\/p>\n<ul>\n<li>\u0435\u0441\u043b\u0438 \u0432 \u0437\u0430\u043f\u0438\u0441\u0438 \u0432\u0441\u0442\u0440\u0435\u0442\u0438\u043b\u0438 \u0447\u0438\u0441\u043b\u043e, \u0442\u043e \u043a\u043b\u0430\u0434\u0451\u043c \u0435\u0433\u043e \u0432 \u0441\u0442\u044d\u043a;<\/li>\n<li>\u0435\u0441\u043b\u0438 \u0432 \u0437\u0430\u043f\u0438\u0441\u0438 \u0432\u0441\u0442\u0440\u0435\u0442\u0438\u043b\u0438 \u0444\u0443\u043d\u043a\u0446\u0438\u044e \u0438\u043b\u0438 \u0443\u043d\u0430\u0440\u043d\u044b\u0439 \u043c\u0438\u043d\u0443\u0441, \u0442\u043e :\n<ul>\n<li>\u0432\u044b\u0442\u0430\u0441\u043a\u0438\u0432\u0430\u0435\u043c \u0438\u0437 \u0441\u0442\u044d\u043a\u0430 \u0432\u0435\u0440\u0445\u043d\u0438\u0439 \u044d\u043b\u0435\u043c\u0435\u043d\u0442;<\/li>\n<li>\u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u043c \u0444\u0443\u043d\u043a\u0446\u0438\u044e \u043a \u043d\u0435\u043c\u0443;<\/li>\n<li>\u043a\u043b\u0430\u0434\u0451\u043c \u044d\u043b\u0435\u043c\u0435\u043d\u0442 \u043e\u0431\u0440\u0430\u0442\u043d\u043e \u0432 \u0441\u0442\u044d\u043a;<\/li>\n<\/ul>\n<\/li>\n<li>\u0435\u0441\u043b\u0438 \u0432 \u0437\u0430\u043f\u0438\u0441\u0438 \u0432\u0441\u0442\u0440\u0435\u0442\u0438\u043b\u0438 \u0431\u0438\u043d\u0430\u0440\u043d\u044b\u0439 \u043e\u043f\u0435\u0440\u0430\u0442\u043e\u0440, \u0442\u043e:\n<ul>\n<li>\u0432\u044b\u0442\u0430\u0441\u043a\u0438\u0432\u0430\u0435\u043c \u0438\u0437 \u0441\u0442\u044d\u043a\u0430 \u0434\u0432\u0430 \u0432\u0435\u0440\u0445\u043d\u0438\u0445 \u044d\u043b\u0435\u043c\u0435\u043d\u0442\u0430;<\/li>\n<li>\u0432\u044b\u043f\u043e\u043b\u043d\u044f\u0435\u043c \u043d\u0430\u0434 \u043d\u0438\u043c\u0438 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u044e;<\/li>\n<li>\u043a\u043b\u0430\u0434\u0451\u043c \u0432 \u0441\u0442\u044d\u043a \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0438;<\/li>\n<\/ul>\n<\/li>\n<li>\u0432\u044b\u0432\u043e\u0434\u0438\u043c \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0438\u0439 \u044d\u043b\u0435\u043c\u0435\u043d\u0442 \u0441\u0442\u044d\u043a\u0430.<\/li>\n<\/ul>\n<h1>\u041a\u043e\u0434 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u044b<\/h1>\n<p><a href=\"https:\/\/ideone.com\/8dcQPE\">ideone.com<\/a><\/p>\n<pre class=\"lang:java decode:true\">import java.util.*;\r\nimport java.lang.*;\r\nimport java.io.*;\r\n\r\nclass ExpressionParser {\r\n\tprivate static String operators = \"+-*\/\";\r\n\tprivate static String delimiters = \"() \" + operators;\r\n\tpublic static boolean flag = true;\r\n\tprivate static boolean isDelimiter(String token) {\r\n\t\tif (token.length() != 1) return false;\r\n\t\tfor (int i = 0; i &lt; delimiters.length(); i++) {\r\n\t\t\tif (token.charAt(0) == delimiters.charAt(i)) return true;\r\n\t\t}\r\n\t\treturn false;\r\n\t}\r\n\t\r\n\tprivate static boolean isOperator(String token) {\r\n\t\tif (token.equals(\"u-\")) return true;\r\n\t\tfor (int i = 0; i &lt; operators.length(); i++) {\r\n\t\t\tif (token.charAt(0) == operators.charAt(i)) return true;\r\n\t\t}\r\n\t\treturn false;\r\n\t}\r\n\t\r\n\tprivate static boolean isFunction(String token) {\r\n\t\tif (token.equals(\"sqrt\") || token.equals(\"cube\") || token.equals(\"pow10\")) return true;\r\n\t\treturn false;\r\n\t}\r\n\t\r\n\tprivate static int priority(String token) {\r\n\t\tif (token.equals(\"(\")) return 1;\r\n\t\tif (token.equals(\"+\") || token.equals(\"-\")) return 2;\r\n\t\tif (token.equals(\"*\") || token.equals(\"\/\")) return 3;\r\n\t\treturn 4;\r\n\t}\r\n\t\r\n\tpublic static List&lt;String&gt; parse(String infix) {\r\n\t\tList&lt;String&gt; postfix = new ArrayList&lt;String&gt;();\r\n\t\tDeque&lt;String&gt; stack = new ArrayDeque&lt;String&gt;();\r\n\t\tStringTokenizer tokenizer = new StringTokenizer(infix, delimiters, true);\r\n\t\tString prev = \"\";\r\n\t\tString curr = \"\";\r\n\t\twhile (tokenizer.hasMoreTokens()) {\r\n\t\t\tcurr = tokenizer.nextToken();\r\n\t\t\tif (!tokenizer.hasMoreTokens() &amp;&amp; isOperator(curr)) {\r\n\t\t\t\tSystem.out.println(\"\u041d\u0435\u043a\u043e\u0440\u0440\u0435\u043a\u0442\u043d\u043e\u0435 \u0432\u044b\u0440\u0430\u0436\u0435\u043d\u0438\u0435.\");\r\n\t\t\t\tflag = false;\r\n\t\t\t\treturn postfix;\r\n\t\t\t}\r\n\t\t\tif (curr.equals(\" \")) continue;\r\n\t\t\tif (isFunction(curr)) stack.push(curr);\r\n\t\t\telse if (isDelimiter(curr)) {\r\n\t\t\t\tif (curr.equals(\"(\")) stack.push(curr);\r\n\t\t\t\telse if (curr.equals(\")\")) {\r\n\t\t\t\t\twhile (!stack.peek().equals(\"(\")) {\r\n\t\t\t\t\t\tpostfix.add(stack.pop());\r\n\t\t\t\t\t\tif (stack.isEmpty()) {\r\n\t\t\t\t\t\t\tSystem.out.println(\"\u0421\u043a\u043e\u0431\u043a\u0438 \u043d\u0435 \u0441\u043e\u0433\u043b\u0430\u0441\u043e\u0432\u0430\u043d\u044b.\");\r\n\t\t\t\t\t\t\tflag = false;\r\n\t\t\t\t\t\t\treturn postfix;\r\n\t\t\t\t\t\t}\r\n\t\t\t\t\t}\r\n\t\t\t\t\tstack.pop();\r\n\t\t\t\t\tif (!stack.isEmpty() &amp;&amp; isFunction(stack.peek())) {\r\n\t\t\t\t\t\tpostfix.add(stack.pop());\r\n\t\t\t\t\t}\r\n\t\t\t\t}\r\n\t\t\t\telse {\r\n\t\t\t\t\tif (curr.equals(\"-\") &amp;&amp; (prev.equals(\"\") || (isDelimiter(prev)  &amp;&amp; !prev.equals(\")\")))) {\r\n\t\t\t\t\t\t\/\/ \u0443\u043d\u0430\u0440\u043d\u044b\u0439 \u043c\u0438\u043d\u0443\u0441\r\n\t\t\t\t\t\tcurr = \"u-\";\r\n\t\t\t\t\t}\r\n\t\t\t\t\telse {\r\n\t\t\t\t\t\twhile (!stack.isEmpty() &amp;&amp; (priority(curr) &lt;= priority(stack.peek()))) {\r\n\t\t\t\t\t\t\tpostfix.add(stack.pop());\r\n\t\t\t\t\t\t}\r\n\t\t\t\t\t\t\r\n\t\t\t\t\t}\r\n\t\t\t\t\tstack.push(curr);\r\n\t\t\t\t}\r\n\t\t\t\t\r\n\t\t\t}\r\n\t\t\t\r\n\t\t\telse {\r\n\t\t\t\tpostfix.add(curr);\r\n\t\t\t}\r\n\t\t\tprev = curr;\r\n\t\t}\r\n\t\t\r\n\t\twhile (!stack.isEmpty()) {\r\n\t\t\tif (isOperator(stack.peek())) postfix.add(stack.pop());\r\n\t\t\telse {\r\n\t\t\t\tSystem.out.println(\"\u0421\u043a\u043e\u0431\u043a\u0438 \u043d\u0435 \u0441\u043e\u0433\u043b\u0430\u0441\u043e\u0432\u0430\u043d\u044b.\");\r\n\t\t\t\tflag = false;\r\n\t\t\t\treturn postfix;\r\n\t\t\t}\r\n\t\t}\r\n\t\treturn postfix;\r\n\t}\r\n}\r\n\r\nclass Ideone {\r\n\tpublic static Double calc(List&lt;String&gt; postfix) {\r\n\t\tDeque&lt;Double&gt; stack = new ArrayDeque&lt;Double&gt;();\r\n\t\tfor (String x : postfix) {\r\n\t\t\tif (x.equals(\"sqrt\")) stack.push(Math.sqrt(stack.pop()));\r\n\t\t\telse if (x.equals(\"cube\")) {\r\n\t\t\t\tDouble tmp = stack.pop();\r\n\t\t\t\tstack.push(tmp * tmp * tmp);\r\n\t\t\t}\r\n\t\t\telse if (x.equals(\"pow10\")) stack.push(Math.pow(10, stack.pop()));\r\n\t\t\telse if (x.equals(\"+\")) stack.push(stack.pop() + stack.pop());\r\n\t\t\telse if (x.equals(\"-\")) {\r\n\t\t\t\tDouble b = stack.pop(), a = stack.pop();\r\n\t\t\t\tstack.push(a - b);\r\n\t\t\t}\r\n\t\t\telse if (x.equals(\"*\")) stack.push(stack.pop() * stack.pop());\r\n\t\t\telse if (x.equals(\"\/\")) {\r\n\t\t\t\tDouble b = stack.pop(), a = stack.pop();\r\n\t\t\t\tstack.push(a \/ b);\r\n\t\t\t}\r\n\t\t\telse if (x.equals(\"u-\")) stack.push(-stack.pop());\r\n\t\t\telse stack.push(Double.valueOf(x));\r\n\t\t}\r\n\t\treturn stack.pop();\r\n\t}\r\n\t\r\n\tpublic static void main (String[] args) {\r\n\t\tScanner in = new Scanner(System.in);\r\n\t\tString s = in.nextLine();\r\n\t\tExpressionParser n = new ExpressionParser();\r\n\t\tList&lt;String&gt; expression = n.parse(s);\r\n\t\tboolean flag = n.flag;\r\n\t\tif (flag) {\r\n\t\t\tfor (String x : expression) System.out.print(x + \" \");\r\n\t\t\tSystem.out.println();\r\n\t\t\tSystem.out.println(calc(expression));\r\n\t\t}\r\n\t}\r\n}<\/pre>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u041f\u0435\u0440\u0435\u0434\u043e \u043c\u043d\u043e\u0439 \u0441\u0442\u043e\u044f\u043b\u0438 \u0437\u0430\u0434\u0430\u0447\u0438: \u043f\u0435\u0440\u0435\u0432\u0435\u0441\u0442\u0438 \u0432\u044b\u0440\u0430\u0436\u0435\u043d\u0438\u0435 \u0432 \u043e\u0431\u0440\u0430\u0442\u043d\u0443\u044e \u043f\u043e\u043b\u044c\u0441\u043a\u0443\u044e \u043d\u043e\u0442\u0430\u0446\u0438\u044e; \u043f\u043e\u0441\u0447\u0438\u0442\u0430\u0442\u044c \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 \u0432\u044b\u0440\u0430\u0436\u0435\u043d\u0438\u044f. \u0422\u0430\u043a\u0436\u0435 \u044f \u0440\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043b\u0430 \u0443\u043d\u0430\u0440\u043d\u044b\u0439 \u043c\u0438\u043d\u0443\u0441, \u0434\u0435\u043b\u0435\u043d\u0438\u0435 \u0438 \u0444\u0443\u043d\u043a\u0446\u0438\u0438 cube(), sqrt(), pow10(). \u0412\u044b\u0440\u0430\u0436\u0435\u043d\u0438\u0435 \u041e\u0431\u0440\u0430\u0442\u043d\u0430\u044f \u043f\u043e\u043b\u044c\u0441\u043a\u0430\u044f \u043d\u043e\u0442\u0430\u0446\u0438\u044f \u0420\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442 15 * -(3 &#8212; 4) 15 3 4 &#8212; u- * 15 sqrt(4) + (8 * 0.5) 4 sqrt 8 0.5 * + 6 -cube(-3) 3 &hellip; <a href=\"https:\/\/java.mazurok.com\/?p=454\" class=\"more-link\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":20,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[49],"tags":[48,47],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/java.mazurok.com\/index.php?rest_route=\/wp\/v2\/posts\/454"}],"collection":[{"href":"https:\/\/java.mazurok.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/java.mazurok.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/java.mazurok.com\/index.php?rest_route=\/wp\/v2\/users\/20"}],"replies":[{"embeddable":true,"href":"https:\/\/java.mazurok.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=454"}],"version-history":[{"count":8,"href":"https:\/\/java.mazurok.com\/index.php?rest_route=\/wp\/v2\/posts\/454\/revisions"}],"predecessor-version":[{"id":5418,"href":"https:\/\/java.mazurok.com\/index.php?rest_route=\/wp\/v2\/posts\/454\/revisions\/5418"}],"wp:attachment":[{"href":"https:\/\/java.mazurok.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=454"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/java.mazurok.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=454"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/java.mazurok.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=454"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}