{"id":361,"date":"2013-03-23T19:11:00","date_gmt":"2013-03-23T11:11:00","guid":{"rendered":"http:\/\/nike0good.jp1.rpvhost.net\/265"},"modified":"2013-03-23T19:11:00","modified_gmt":"2013-03-23T11:11:00","slug":"cf_287a_iq_test-enumeration_three_characters_equal_matrix","status":"publish","type":"post","link":"https:\/\/nike0good.com\/?p=361","title":{"rendered":"CF 287A(IQ Test-\u679a\u4e3e3\u4e2a\u5b57\u7b26\u76f8\u7b49\u7684\u77e9\u9635)"},"content":{"rendered":"
\n
\n
\n
\n
\n
A. IQ Test<\/div>\n
\n
\ntime limit per test<\/div>\n

2 seconds<\/p><\/div>\n

\n
\nmemory limit per test<\/div>\n

256 megabytes<\/p><\/div>\n

\n
\ninput<\/div>\n

standard input<\/p><\/div>\n

\n
\noutput<\/div>\n

standard output<\/p><\/div>\n<\/div>\n

\n

\nIn the city of Ultima Thule job applicants are often offered an IQ test.<\/p>\n

\nThe test is as follows: the person gets a piece of squared paper with a 4\u2009\u00d7\u20094<\/span> square painted on it. Some of the square's cells are painted black and others are painted
\n white. Your task is to repaint at most one<\/span> cell the other color so that the picture has a 2\u2009\u00d7\u20092<\/span> square,
\n completely consisting of cells of the same color. If the initial picture already has such a square, the person should just say so and the test will be completed.<\/p>\n

\nYour task is to write a program that determines whether it is possible to pass the test. You cannot pass the test if either repainting any cell or no action doesn't result in a 2\u2009\u00d7\u20092<\/span> square,
\n consisting of cells of the same color.<\/p>\n<\/div>\n

\n
\nInput<\/div>\n

\nFour lines contain four characters each: the j<\/em><\/span>-th character of the i<\/em><\/span>-th
\n line equals ".<\/span>" if the cell in the i<\/em><\/span>-th row and the j<\/em><\/span>-th
\n column of the square is painted white, and "#<\/span>", if the cell is black.<\/p>\n<\/div>\n

\n
\nOutput<\/div>\n

\nPrint "YES<\/span>" (without the quotes), if the test can be passed and "NO<\/span>"
\n (without the quotes) otherwise.<\/p>\n<\/div>\n

\n
\nSample test(s)<\/div>\n
\n
\n
\ninput<\/div>\n
####\n.#..\n####\n....\n<\/pre>\n<\/div>\n
\n
\noutput<\/div>\n
YES\n<\/pre>\n<\/div>\n
\n
\ninput<\/div>\n
####\n....\n####\n....\n<\/pre>\n<\/div>\n
\n
\noutput<\/div>\n
NO\n<\/pre>\n<\/div>\n<\/div>\n<\/div>\n
\n
\nNote<\/div>\n
\nIn the first test sample it is enough to repaint the first cell in the second row. After such repainting the required 2\u2009\u00d7\u20092<\/span> square is on the intersection of the 1<\/span>-st
\n and 2<\/span>-nd row with the 1<\/span>-st and 2<\/span>-nd
\n column.<\/p>\n
\n<\/div>\n
\n<\/div>\n
\u679a\u4e3e\u770b\u662f\u5426\u6709\u4e00\u4e2a\u77e9\u5f62\u67093\u4e2a\u5b57\u7b26\u76f8\u7b49<\/span><\/div>\n
\u4e00\u5f00\u59cb\u5c45\u7136\u628a4\u4e2a\u5224\u65ad\u6253\u9519\u4e86\uff1f\u300a\u4e0a\u5348\u4e5f\u662f\u2026\u2026<\/span><\/div>\n
<\/span><\/p>\n
#include<cstdio>\n#include<cstring>\n#include<cstdlib>\n#include<cctype>\nusing namespace std;\n#define MAXLen (4+10)\nchar a[MAXLen][MAXLen];\nbool flag=0;\nint main()\n{\n\tfor (int i=1;i<=4;i++) scanf("%s",a[i]+1);\n\tfor (int i=1;i<4;i++)\n\t\tfor (int j=1;j<4;j++)\n\t\t{\n\t\t\tif (a[i][j]==a[i][j+1]&&a[i][j]==a[i+1][j]) flag=1;\n\t\t\tif (a[i][j]==a[i][j+1]&&a[i][j]==a[i+1][j+1]) flag=1;\n\t\t\tif (a[i][j]==a[i+1][j]&&a[i][j]==a[i+1][j+1]) flag=1;\n\t\t\tif (a[i+1][j]==a[i][j+1]&&a[i+1][j]==a[i+1][j+1]) flag=1;\n\n\t\t}\n\tif (flag) printf("YESn");\n\telse printf("NOn");\n\treturn 0;\n}<\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"
A. IQ Test time limit per test 2 seconds memory limit p […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","footnotes":""},"categories":[3],"tags":[90,104],"class_list":["post-361","post","type-post","status-publish","format-standard","hentry","category-defaultcategory","tag-enumerate","tag-matrix"],"yoast_head":"\nCF 287A(IQ Test-\u679a\u4e3e3\u4e2a\u5b57\u7b26\u76f8\u7b49\u7684\u77e9\u9635) - nike0good<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/nike0good.com\/?p=361\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"CF 287A(IQ Test-\u679a\u4e3e3\u4e2a\u5b57\u7b26\u76f8\u7b49\u7684\u77e9\u9635) - nike0good\" \/>\n<meta property=\"og:description\" content=\"A. 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