题目链接: I. Special Squares There are some points and lines parellel to x-axis or y-axis on the plane. If arbitrary chosen two lines parallel to x-axis and two lines parallel to y-axis, one rectangle, or sometimes a square, will be formed. If a square i
题目描述: AS WE ALL KNOW, lfx是咱们组的神仙,但是mxh想考一考lfx一个简单的问题,以此看一下lfx到底是不是神仙.但是lfx要准备补考,于是请你来帮忙回答问题: 给定一个整数N,和N个整数ai(1<=i<=n),mxh有n个询问,即第i个询问(1<=i<=n)是数组a从1~i这i个数中,奇数的个数是否是一个质数?< span=""> 如果是请输出”YES”,没有引号.反之输出”NO”. 正如你想的那样,你输出有N个输出. 数据
Bill is developing a new mathematical theory for human emotions. His recent investigations are dedicated to studying how good or bad days influent people's memories about some period of life. A new idea Bill has recently developed assigns a non-negat
To stay woke and attentive during classes, Karen needs some coffee! Karen, a coffee aficionado, wants to know the optimal temperature for brewing the perfect cup of coffee. Indeed, she has spent some time reading several recipe books, including the u