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浙大PAT-A题目集

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全部文章 / 浙大PAT-A题目集（共30篇）

PAT-A 1069. The Black Hole of Numbers

1069. The Black Hole of Numbers For any 4-digit integer except the ones with all the digits being the same, if we sort the digits in non-increasing o...

2016-08-03

0 430

PAT-A 1015. Reversible Primes

1015. Reversible Primes A reversible prime in any number system is a prime whose “reverse” in that number system is also a prime. For example in the ...

2016-08-03

0 465

PAT-A 1035. Password

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 ...

2016-08-01

0 377

PAT-A 1100. Mars Numbers

People on Mars count their numbers with base 13: Zero on Earth is called “tret” on Mars. The numbers 1 to 12 on Earch is called “jan, feb, mar, ...

2016-07-31

0 519

PAT-A 1093. Count PAT's

The string APPAPT contains two PAT’s as substrings. The first one is formed by the 2nd, the 4th, and the 6th characters, and the second one is formed ...

2016-07-31

0 428

PAT-A 1092. To Buy or Not to Buy

Eva would like to make a string of beads with her favorite colors so she went to a small shop to buy some beads. There were many colorful strings of b...

2016-07-31

0 386

PAT-A 1084. Broken Keyboard

On a broken keyboard, some of the keys are worn out. So when you type some sentences, the characters corresponding to those keys will not appear on sc...

2016-07-31

0 422

PAT-A 1083. List Grades

Given a list of N student records with name, ID and grade. You are supposed to sort the records with respect to the grade in non-increasing order, and...

2016-07-31

0 352

PAT-A 1042. Shuffling Machine

Shuffling is a procedure used to randomize a deck of playing cards. Because standard shuffling techniques are seen as weak, and in order to avoid “ins...

2016-07-31

0 455

PAT-A 1041. Be Unique

Being unique is so important to people on Mars that even their lottery is designed in a unique way. The rule of winning is simple: one bets on a numbe...

2016-07-31

0 512