滚动数组实现斐波那契数列...

#include <cstdlib>#include <iostream>using namespace std;int main(int argc, char *argv[]){ int index; cout << "please input the index you want to cal: "; cin >> index; int a[2] = {0, 1}; int i; for(i=2; i<=index; i++) a[i % 2] = a[0] + a[1]; cout << "result is: " << a[index % 2] << endl; system("PAUSE"); return EXIT_SUCCESS;}