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2009年2月11日

PHP截取字符串[GB2312-UTF8编码]

摘要: 1. 截取GB2312中文字符串 0xa0) { $tmpstr .= substr($str, $i, 2); $i++; } else $tmpstr .= substr($str, $i, 1); } ... 阅读全文

posted @ 2009-02-11 16:05 王峰炬 阅读(159) 评论(0) 推荐(0)

Ten-digit Fractions

摘要: Similar with another article of mine: Nine-digit Fractions Problem: Suppose integer A,B(A>B) and single C were satisified A/B=C and all digits(0-9... 阅读全文

posted @ 2009-02-11 13:45 王峰炬 阅读(351) 评论(0) 推荐(0)

Nine-digit Fractions(II)

摘要: Problem: Suppose integer A,B(A>B) and single C were satisified A/B=C and all digits(1-9) each used just once in the both sides of the equality res... 阅读全文

posted @ 2009-02-11 01:16 王峰炬 阅读(126) 评论(0) 推荐(0)

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