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2013年1月17日

摘要： Friday the ThirteenthIs Friday the 13th really an unusual event?That is, does the 13th of the month land on a Friday less often than on any other day of the week? To answer this question, write a program that will compute the frequency that the 13th of each month lands on Sunday, Monday, Tuesday, We 阅读全文

posted @ 2013-01-17 23:04 shadow_justice 阅读(227) 评论(0) 推荐(0)

codeforces 161 Div2 B

摘要： B. Squarestime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputVasya has found a piece of paper with a coordinate system written on it. There arendistinct squares drawn in this coordinate system. Let's number the squares with integers from 1 ton. 阅读全文

posted @ 2013-01-17 23:01 shadow_justice 阅读(501) 评论(0) 推荐(0)

codeforces 161 Div2 A

摘要： A. Beautiful Matrixtime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputYou've got a5 × 5matrix, consisting of24zeroes and a single number one. Let's index the matrix rows by numbers from1to5from top to bottom, let's index the matrix 阅读全文

posted @ 2013-01-17 22:59 shadow_justice 阅读(259) 评论(0) 推荐(0)

2013年1月17日

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