标签：cin algo class blog ble main ring style double
#include<iostream> #include<cstdio> #include<cstdlib> #include<cmath> #include<algorithm> #include<cstring> using namespace std; int main() {double a; cin>>a; printf("%0.3lf",a); return 0; }
标签：cin algo class blog ble main ring style double
原文地址：http://www.cnblogs.com/oi-forever/p/7337195.html
