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DescriptionTwo bored soldiers are playing card war. Their card deck consists of exactlyncards, numbered from1ton,all values are different. They divide... 阅读全文
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We say a sequence of characters is a palindrome if it is the same written forwards and backwards. For example, ‘racecar’ is a palindrome, but ‘fastcar... 阅读全文
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A sequence of N positive integers (10 b[j]-s)continue; while(b[i]<=b[j]-s)i++; ans=min(ans,j-i+1); } printf("%d\n"... 阅读全文
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Alice got a hold of an old calculator that can display n digits. She was bored enough to come up with the following time waster.She enters a number k ... 阅读全文
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Bob is a strategy game programming specialist. In his new city building game the gaming environment is as follows: a city is built up by areas, in whi... 阅读全文
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In a city there are n bus drivers. Also there are n morning bus routes and n afternoon bus routes withvarious lengths. Each driver is assigned one mor... 阅读全文
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Here is a famous story in Chinese history.That was about 2300 years ago. General Tian Ji was a high official in the country Qi. He likes to play horse... 阅读全文
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A number of students are members ofa club that travels annually to exoticlocations. Their destinations in thepast have included Indianapolis, Phoenix,... 阅读全文
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We would like to place n rooks, 1 ≤ n ≤ 5000, on a n × nboard subject to the following restrictions• The i-th rook can only be placed within the recta... 阅读全文
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There are lots of number games for children. These games are pretty easy to play but not so easy to make. We will discuss about an interesting game he... 阅读全文
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DescriptionJohn Doe is a famous DJ and, therefore, has the problem of optimizing the placement of songs on his tapes. For a given tape and for each so... 阅读全文