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学习笔记

递归: 代码模板: public void recursion(int level,int param){ //terminator if(level > MAX){ return; } //process current logic process(level,param); //drill down recursion(level+1, newParam); //revert status } 思维要点: 1.不要人肉递归 2.找到重复子问题 3.数学归纳法:n=1,n=2时成立,当n成立时, n+1 成立

分治/回溯: 递归 代码模板: public void recursion(int level,int param){ //terminator if(level > MAX){ return; } //process current logic process(level,param); //drill down recursion(level+1, newParam); //merge subsult merge(subsult); //revert status }