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Given a string, you are supposed to output the length of the longest symmetric sub-string. For example, given Is PAT&TAP symmetric?, the longest symme 阅读全文
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Zhejiang University has 40000 students and provides 2500 courses. Now given the student name lists of all the courses, you are supposed to output the 阅读全文
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Given a collection of number segments, you are supposed to recover the smallest number from them. For example, given { 32, 321, 3214, 0229, 87 }, we c 阅读全文
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The magic shop in Mars is offering some magic coupons. Each coupon has an integer N printed on it, meaning that when you use this coupon with a produc 阅读全文
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This time you are asked to tell the difference between the lowest grade of all the male students and the highest grade of all the female students. Inp 阅读全文
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To prepare for PAT, the judge sometimes has to generate random passwords for the users. The problem is that there are always some confusing passwords 阅读全文
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A traveler's map gives the distances between cities along the highways, together with the cost of each highway. Now you are supposed to write a progra 阅读全文
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A table tennis club has N tables available to the public. The tables are numbered from 1 to N. For any pair of players, if there are some tables open 阅读全文