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(共62篇)
Codeforces Round #556 (Div. 2) B. Tiling Challenge
output standard output One day Alice was cleaning up her basement when she noticed something very curious: an infinite set of wooden pieces! Each pi...
2019-04-30
0
452
Codeforces Round #556 (Div. 2) C. Prefix Sum Primes
We're giving away nice huge bags containing number tiles! A bag we want to present to you contains n tiles. Each of them has a single number written o...
2019-04-30
0
383
Sequence in the Pocket
DreamGrid has just found an integer sequence in his right pocket. As DreamGrid is bored, he decides to play with the sequence. He can perform the foll...
2019-04-28
0
494
Welcome Party
The 44th World Finals of the International Collegiate Programming Contest (ICPC 2020) will be held in Moscow, Russia. To celebrate this annual event f...
2019-04-27
0
272
Singing Everywhere
Baobao loves singing very much and he really enjoys a game called Singing Everywhere, which allows players to sing and scores the players according to...
2019-04-27
0
420
Fibonacci in the Pocket
DreamGrid has just found a Fibonacci sequence and two integers and in his right pocket, where indicates the -th element in the Fibonacci sequence. Pl...
2019-04-27
0
423
Abbreviation
In the Test of English as a Foreign Language (TOEFL), the listening part is very important but also very hard for most students since it is usually qu...
2019-04-27
0
428
Lucky 7 in the Pocket
BaoBao loves number 7 but hates number 4, so he refers to an integer as a "lucky integer" if is divisible by 7 but not divisible by 4. For e...
2019-04-27
0
353
Codeforces Round #555 (Div. 3) C2. Increasing Subsequence (hard version)
The only difference between problems C1 and C2 is that all values in input of problem C1 are distinct (this condition may be false for problem C2). Y...
2019-04-27
0
485
Codeforces Round #554 (Div. 2) B - Neko Performs Cat Furrier Transform
output standard output Cat Furrier Transform is a popular algorithm among cat programmers to create longcats. As one of the greatest cat programmers...
2019-04-25
0
424
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