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Little Vitaly loves different algorithms. Today he has invented a new algorithm just for you. Vitaly's algorithm works with string s, consisting of ch 阅读全文
posted @ 2019-08-21 09:07
风骨散人
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Maxim always goes to the supermarket on Sundays. Today the supermarket has a special offer of discount systems. There are m types of discounts. We ass 阅读全文
posted @ 2019-08-21 09:04
风骨散人
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Roma works in a company that sells TVs. Now he has to prepare a report for the last year. Roma has got a list of the company's incomes. The list is a 阅读全文
posted @ 2019-08-21 08:55
风骨散人
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A recently found Ancient Prophesy is believed to contain the exact Apocalypse date. The prophesy is a string that only consists of digits and characte 阅读全文
posted @ 2019-08-21 08:46
风骨散人
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Little Vasya had n boxes with balls in the room. The boxes stood in a row and were numbered with numbers from 1 to n from left to right. Once Vasya ch 阅读全文
posted @ 2019-08-21 08:43
风骨散人
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