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资深光能
- #include<iostream>
- #include<cstring>
- #include<cmath>
- #include<string>
- #include<cstdio>
- #include<algorithm>
- using namespace std;
- int tz(int n);
- int main()
- {
- int n;
- while(cin>>n)
- {
- cout<<tz(n)<<endl;
- }
- return 0;
- }
- int tz(int n)
- {
- if(n==1||n==2) return n;
- return tz(n-1)+tz(n-2);
- }
