HBC213990Segment Tree,枚举SimpleMathProblem题解

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Tongtong is playing math game again. She had come across this square matrix many times,so needless to say, she knows what you want to ask. Now she throws this question to you. You need to look at the following square matrix,then she will give you three integers n,x,and y,that means there are an n×n square matrix. You need to figure out what the value of row x, column y corresponds to. For example,there are one 5×5 square matrix: 0 1 3 6 A 2 4 7 B F 5 8 C 10 13 9 D 11 14 16 E 12 15 17 18 Letters stand for hexadecimal numbers

Tongtong is playing math game again. She had come across this square matrix many times,so needless to say, she knows what you want to ask. Now she throws this question to you. You need to look at the following square matrix,then she will give you three integers n,x,and y,that means there are an n×n square matrix. You need to figure out what the value of row x, column y corresponds to. For example,there are one 5×5 square matrix: 0   1   3   6   A 2   4   7   B   F 5   8   C  10  13 9   D  11  14  16 E  12  15  17  18 Letters stand for hexadecimal numbers

HBC213990Segment Tree,枚举SimpleMathProblem题解
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