题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=2042
这道题是一个递归题!
#include <cstdlib> #include <iostream> using namespace std; int f(int n) { if(n==1) return 4; if(n>1) return (f(n-1)-1)*2; } int main(int argc, char *argv[]) { int n; cin>>n; while(n--) { int Station; cin>>Station; cout<<f(Station)<<endl; } system("PAUSE"); return EXIT_SUCCESS; }
经常回顾呀~~~~~~~~~~~~