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Description Description Problem C: Jolly Jumpers A sequence of n > 0 integers is called a jolly jumper if the absolute values of the difference betwee 阅读全文
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Description Description Problem C: WERTYU A common typing error is to place the hands on the keyboard one row to the right of the correct position. So 阅读全文
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Description Description 有形如:ax3+bx2+cx+d=0 这样的一个一元三次方程。给出该方程中各项的系数(a,b,c,d 均为实数),并约定该方程存在三个不同实根(根的范围在-100至100之间),且根与根之差的绝对值> =1。要求三个实根。 有形如:ax3+bx2+cx 阅读全文