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D. Aroma's Search

链接：https://codeforces.com/contest/1293/problem/D THE SxPLAY & KIVΛ - 漂流 KIVΛ & Nikki Simmons - Perspectives With a new body, our idol Aroma...

2020-05-28

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C. Divisibility by Eight

链接：https://codeforces.com/contest/550/problem/C You are given a non-negative integer n, its decimal representation consists of at most 100 digits and...

2020-05-28

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B. Pasha and String

链接：https://codeforces.com/contest/525/problem/B Pasha got a very beautiful string s for his birthday, the string consists of lowercase Latin letters....

2020-05-28

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C. Banh-mi

链接：https://codeforces.com/group/nhsfFrN6WT/contest/266629/problem/C JATC loves Banh-mi (a Vietnamese food). His affection for Banh-mi is so much that...

2020-05-28

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D. Fun with Integers

链接：https://codeforces.com/group/nhsfFrN6WT/contest/266629/problem/D You are given a positive integer nn greater or equal to 22. For every pair of int...

2020-05-28

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C. Product of Three Numbers

链接：https://codeforces.com/contest/1294/problem/C You are given one integer number nn. Find three distinct integers a,b,ca,b,c such that 2≤a,b,c2≤a,b,...

2020-05-28

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D. MEX maximizing

链接：https://codeforces.com/contest/1294/problem/D Recall that MEX of an array is a minimum non-negative integer that does not belong to the array. Exa...

2020-05-28

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E. Two Arrays and Sum of Functions

链接：https://codeforces.com/contest/1165/problem/E You are given two arrays aa and bb, both of length nn. Let's define a function f(l,r)=∑l≤i≤rai⋅bif(...

2020-05-28

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B. Spreadsheets

链接：https://codeforces.com/contest/1/problem/B In the popular spreadsheets systems (for example, in Excel) the following numeration of columns is used...

2020-05-28

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A. DZY Loves Sequences

链接：https://codeforces.com/contest/446/problem/A DZY has a sequence a, consisting of n integers. We'll call a sequence ai, ai + 1, ..., aj (1 ≤ i ≤ j...

2020-05-28

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