題意略。 思路: hd515和hd615性能差距、考察導數和分類討論的思想,因為在做題時少討論一種情況,所以wa了。 #include<bits/stdc++.h>
using namespace std;double a,b,c,d,L,R;double func(double x){return fabs(a * x * x * x + b *
coursea鏈接:https://www.coursera.org/learn/neural-networks-deep-learning/notebook/Zh0CU/python-basics-with-numpy-optionalhttps://www.coursera.org/learn/neural-networks-deep-learning/notebook/Zh0CU/python-basics-with-numpy-optional Python Basics with Nump
1. for循環 語法1:for NAME [in WORDS ... ] ; do COMMANDS; done #!/bin/bashif [[ $# -lt 1 ]] ; then echo no param!!!; exit; fi
for a in "$@" ; do echo hello$a > ${a} ; done 如果參數的個數小于1,直接退出。否則把hello+參數名