{"id":965,"date":"2016-07-06T11:54:29","date_gmt":"2016-07-06T08:54:29","guid":{"rendered":"http:\/\/java.mazurok.com\/?p=965"},"modified":"2016-07-06T22:42:54","modified_gmt":"2016-07-06T19:42:54","slug":"a278","status":"publish","type":"post","link":"https:\/\/java.mazurok.com\/?p=965","title":{"rendered":"A278"},"content":{"rendered":"<h2>\u0417\u0430\u0434\u0430\u0447\u0430 A278<\/h2>\n<h3>\u0423\u0441\u043b\u043e\u0432\u0438\u0435 \u0437\u0430\u0434\u0430\u0447\u0438<\/h3>\n<p>\u0414\u0430\u043d\u044b \u043d\u0430\u0442\u0443\u0440\u0430\u043b\u044c\u043d\u044b\u0435 \u0447\u0438\u0441\u043b\u0430 <img decoding=\"async\" class=\"latex\" title=\"n_{1},\\dots,n_{m}\" src=\"http:\/\/s0.wp.com\/latex.php?latex=n_%7B1%7D%2C%5Cdots%2Cn_%7Bm%7D&amp;bg=292625&amp;fg=b29d85&amp;s=0\" alt=\"n_{1},\\dots,n_{m}\" \/>, \u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0435 \u0447\u0438\u0441\u043b\u0430 <img decoding=\"async\" class=\"latex\" title=\"x_{1},\\dots,x_{m}\" src=\"http:\/\/s0.wp.com\/latex.php?latex=x_%7B1%7D%2C%5Cdots%2Cx_%7Bm%7D&amp;bg=292625&amp;fg=b29d85&amp;s=0\" alt=\"x_{1},\\dots,x_{m}\" \/>. \u0412\u044b\u0447\u0438\u0441\u043b\u0438\u0442\u044c <img decoding=\"async\" class=\"latex\" title=\"\\frac{n_{1}\\cdot x_{1}+\\dots+n_{m}\\cdot x_{m}}{n_{1}+\\dots+n_{m}}\" src=\"http:\/\/s0.wp.com\/latex.php?latex=%5Cfrac%7Bn_%7B1%7D%5Ccdot+x_%7B1%7D%2B%5Cdots%2Bn_%7Bm%7D%5Ccdot+x_%7Bm%7D%7D%7Bn_%7B1%7D%2B%5Cdots%2Bn_%7Bm%7D%7D&amp;bg=292625&amp;fg=b29d85&amp;s=0\" alt=\"\\frac{n_{1}\\cdot x_{1}+\\dots+n_{m}\\cdot x_{m}}{n_{1}+\\dots+n_{m}}\" \/>.<\/p>\n<h3>\u0422\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435<\/h3>\n<table width=\"461\">\n<tbody>\n<tr>\n<td><strong>\u2116<\/strong><\/td>\n<td><strong>\u0412\u0445\u043e\u0434\u043d\u044b\u0435 \u0434\u0430\u043d\u043d\u044b\u0435<\/strong><\/td>\n<td><strong>\u0412\u044b\u0445\u043e\u0434\u043d\u044b\u0435 \u0434\u0430\u043d\u043d\u044b\u0435<\/strong><\/td>\n<\/tr>\n<tr>\n<td>1.<\/td>\n<td>1 2 4 -1<\/td>\n<td>-0.4<\/td>\n<\/tr>\n<tr>\n<td>2.<\/td>\n<td>1 2 3 4 5 0.6<\/td>\n<td>1.88889<\/td>\n<\/tr>\n<tr>\n<td>3.<\/td>\n<td>5 -2 1 0.2 3 -3 2 0<\/td>\n<td>-1.70909<\/td>\n<\/tr>\n<tr>\n<td>4.<\/td>\n<td>10 3.3 4 0.4 6 0.01 8 1 1 8<\/td>\n<td>1.7469<\/td>\n<\/tr>\n<tr>\n<td>5.<\/td>\n<td>3 -0.5 2 -0.4 1 -0.3 5 32 11 5 20 -1<\/td>\n<td>4.58095<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p><strong>\u041a\u043e\u0434<\/strong><\/p>\n<pre class=\"lang:java decode:true\">import java.util.*;\r\nimport java.lang.*;\r\nimport java.io.*;\r\n \r\nclass A278 {\r\n\tpublic static void main (String[] args) throws java.lang.Exception {\r\n\t\tScanner scanner = new Scanner(System.in);\r\n\t\tdouble numerator = 0;\r\n\t\tint denominator = 0;\r\n\t\twhile (scanner.hasNext()) {\r\n\t\t\tint n = scanner.nextInt();\r\n\t\t\tdouble x = scanner.nextDouble();\r\n\t\t\tnumerator += n * x;\r\n\t\t\tdenominator += n;\r\n\t\t}\r\n\t\tdouble result = numerator \/ denominator;\r\n\t\tSystem.out.println(result);\r\n\t}\r\n}<\/pre>\n<h3>\u0410\u043b\u0433\u043e\u0440\u0438\u0442\u043c \u0440\u0435\u0448\u0435\u043d\u0438\u044f\u00a0(\u043f\u043e\u0442\u043e\u043a\u043e\u0432\u0430\u044f \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0430)<\/h3>\n<p>\u0421\u0447\u0438\u0442\u044b\u0432\u0430\u0435\u043c \u0447\u0438\u0441\u043b\u0430 \u0434\u043e \u043a\u043e\u043d\u0446\u0430 \u0432\u0445\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u043e\u0442\u043e\u043a\u0430 \u0438 \u043f\u043e\u043e\u0447\u0435\u0440\u0435\u0434\u043d\u043e \u0437\u0430\u043f\u0438\u0441\u044b\u0432\u0430\u0435\u043c \u0438\u0445 \u0432 \u043f\u0435\u0440\u0435\u043c\u0435\u043d\u043d\u044b\u0435 <img decoding=\"async\" class=\"latex\" title=\"n\" src=\"http:\/\/s0.wp.com\/latex.php?latex=n&amp;bg=292625&amp;fg=b29d85&amp;s=0\" alt=\"n\" \/> \u0438 <img decoding=\"async\" class=\"latex\" title=\"n\" src=\"http:\/\/s0.wp.com\/latex.php?latex=x&amp;bg=292625&amp;fg=b29d85&amp;s=0\" alt=\"n\" \/> \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0435\u043d\u043d\u043e.<br \/>\n\u041f\u043e\u043a\u0430 \u0432\u0432\u043e\u0434\u044f\u0442\u0441\u044f \u0434\u0430\u043d\u043d\u044b\u0435:<\/p>\n<ol>\n<li>\u0412\u044b\u0447\u0438\u0441\u043b\u044f\u0435\u043c \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 \u0432\u044b\u0440\u0430\u0436\u0435\u043d\u0438\u044f <img decoding=\"async\" class=\"latex\" title=\"n_1\\cdot x_1+\\dots+n_m\\cdot x_m\" src=\"http:\/\/s0.wp.com\/latex.php?latex=n_1%5Ccdot+x_1%2B%5Cdots%2Bn_m%5Ccdot+x_m&amp;bg=292625&amp;fg=b29d85&amp;s=0\" alt=\"n_1\\cdot x_1+\\dots+n_m\\cdot x_m\" \/>, \u043d\u0430\u043a\u0430\u043f\u043b\u0438\u0432\u0430\u044f \u0441\u0443\u043c\u043c\u0443 \u0432 \u0447\u0438\u0441\u043b\u0438\u0442\u0435\u043b\u044c <img decoding=\"async\" class=\"latex\" title=\"n\" src=\"http:\/\/s0.wp.com\/latex.php?latex=numerator&amp;bg=292625&amp;fg=b29d85&amp;s=0\" alt=\"n\" \/>.<\/li>\n<li>\u0412\u044b\u0447\u0438\u0441\u043b\u044f\u0435\u043c \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 \u0432\u044b\u0440\u0430\u0436\u0435\u043d\u0438\u044f\u00a0<img decoding=\"async\" class=\"latex\" title=\"n_1+\\dots+n_m\" src=\"http:\/\/s0.wp.com\/latex.php?latex=n_1%2B%5Cdots%2Bn_m&amp;bg=292625&amp;fg=b29d85&amp;s=0\" alt=\"n_1+\\dots+n_m\" \/>, \u043d\u0430\u043a\u0430\u043f\u043b\u0438\u0432\u0430\u044f \u0441\u0443\u043c\u043c\u0443\u00a0 \u0432 \u0434\u0435\u043b\u0438\u0442\u0435\u043b\u0435 <img decoding=\"async\" class=\"latex\" title=\"n\" src=\"http:\/\/s0.wp.com\/latex.php?latex=denominator&amp;bg=292625&amp;fg=b29d85&amp;s=0\" alt=\"n\" \/>.<\/li>\n<li>\u041d\u0430\u0445\u043e\u0434\u0438\u043c \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442 <img decoding=\"async\" class=\"latex\" title=\"n\" src=\"http:\/\/s0.wp.com\/latex.php?latex=result&amp;bg=292625&amp;fg=b29d85&amp;s=0\" alt=\"n\" \/> \u043e\u0442 \u0434\u0435\u043b\u0435\u043d\u0438\u044f <img decoding=\"async\" class=\"latex\" title=\"n\" src=\"http:\/\/s0.wp.com\/latex.php?latex=numerator&amp;bg=292625&amp;fg=b29d85&amp;s=0\" alt=\"n\" \/> \u043d\u0430\u00a0 <img decoding=\"async\" class=\"latex\" title=\"n\" src=\"http:\/\/s0.wp.com\/latex.php?latex=denominator&amp;bg=292625&amp;fg=b29d85&amp;s=0\" alt=\"n\" \/><\/li>\n<\/ol>\n<p><a href=\"http:\/\/ideone.com\/QsdQPR\">\u041a\u043e\u0434 \u043d\u0430 ideone.com<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u0417\u0430\u0434\u0430\u0447\u0430 A278 \u0423\u0441\u043b\u043e\u0432\u0438\u0435 \u0437\u0430\u0434\u0430\u0447\u0438 \u0414\u0430\u043d\u044b \u043d\u0430\u0442\u0443\u0440\u0430\u043b\u044c\u043d\u044b\u0435 \u0447\u0438\u0441\u043b\u0430 , \u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0435 \u0447\u0438\u0441\u043b\u0430 . \u0412\u044b\u0447\u0438\u0441\u043b\u0438\u0442\u044c . \u0422\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u2116 \u0412\u0445\u043e\u0434\u043d\u044b\u0435 \u0434\u0430\u043d\u043d\u044b\u0435 \u0412\u044b\u0445\u043e\u0434\u043d\u044b\u0435 \u0434\u0430\u043d\u043d\u044b\u0435 1. 1 2 4 -1 -0.4 2. 1 2 3 4 5 0.6 1.88889 3. 5 -2 1 0.2 3 -3 2 0 -1.70909 4. 10 3.3 4 0.4 6 0.01 8 1 1 8 1.7469 &hellip; <a href=\"https:\/\/java.mazurok.com\/?p=965\" class=\"more-link\">Continue reading <span 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