## Codeforces Round #763 ABC Solutions (Java/C++)

A. Robot Cleaner Solution: Just simulate the behavior of the robot according to the requirements of the problem. Code: Java C++…

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## codeforces

Solutions for Codeforce。Include Div2 and Div3. Include Div1 ABC(<2500) also.

A. Robot Cleaner Solution: Just simulate the behavior of the robot according to the requirements of the problem. Code: Java C++…

A. Square String? Solution: First, see whether the length of the string can be divisible by 2, and then verify whether the first half and the second half are the same.…

A. Forbidden Subsequence Solution: You can sort the strings directly, that is, you can directly output the string in the form of aaaabbbbccccdefg.…

A. Polycarp and Sums of Subsequences Solution: We assume a[1]

Solution: First, we can directly consider all items together. Let's consider the following example (I modified it a little bit based on the sample data):…

A. Life of a Flower Solution: Just simulate according to the description of the problem. Code: Java C++…

A. Find Array Solution: Obviously, when x>0, x cannot be divisible by x+1. Therefore, we can set a[i]=a[i-1]+1. Code: Java C++…

Solution: First of all, we need to notice that after the domino is painted, there are actually only 4 states: BW, WB, WW, BB.…