题解列表

筛选

换硬币-题解(C语言代码)

```cpp#includeusingnamespacestd;intf(intn){if(n==0){return1;}elseif(n==1){return1;}else{returnf(n-1)+f(n-2);}}intmain(){intn;cin>>n;cout

数日子-题解(C++代码)

```cpp#includeusingnamespacestd;intmain(){intn=719;intday=0;//判断2018是否是闰年if(2018%4==0&&2018%100!=0||2018%400==0){//是闰年day+=1;}//获取n的百位数intmonth=n/100;i

与2无关的数 -题解(C++代码)

```cpp#include#includeusingnamespacestd;boolf(strings){intb;if((b=s.find("2"))==-1){//没有2returntrue;}else{returnfalse;}}intmain(){intn;cin>>n;intsum=0;