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math.h 数学函数库,一些数学计算的公式的具体实现是放在math.h里,具体有:1 三角函数double sin (double);double cos (double);double tan (double);2 反三角函数double asin (double); 结果介于[-PI/2, P 阅读全文
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E - Buying a TV Set Monocarp has decided to buy a new TV set and hang it on the wall in his flat. The wall has enough free space so Monocarp can buy a 阅读全文
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C-Wandering Robot DreamGrid creates a programmable robot to explore an infinite two-dimension plane. The robot has a basic instruction sequence a1,a2, 阅读全文
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1010.Reports Problem Description Because of Covid-19, Kanade needs to report every time when entering and leaving school. Now you want to check if Kan 阅读全文