算法:tips
ceil函數(shù):返回大于或者等于指定表達(dá)式的最小整數(shù)
floor函數(shù):返回計(jì)算不大于給定值的最大整數(shù)
#include<stdio.h> #include<math.h> int main(void) {double number=123.45;double down,up;down=floor(number);up=ceil(number);printf("originalnumber%5.2lf\n",number);printf("numberroundeddown%5.2lf\n",down);printf("numberroundedup%5.2lf\n",up);return 0; }完全二叉樹:
完全二叉樹的深度是log2(n+1)向上取整;代碼:ceil(log(n+1)/log(2))
log(a) b=log ? b÷log ? a (換底公式)
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