# 東山程研算法班 ## 一切的開始 --- ## GDB online  https://www.onlinegdb.com/ --- ## ZEROJUDGE  https://zerojudge.tw/ --- ## typing.com  https://www.typing.com/ --- ## First C++ code ``` #include <iostream> using namespace std; int main(){ cout<< "Hello world!"; return 0; } ``` ---- ## IO Optimization ---- 比賽基本樣式 不管看不看得懂題目先打就對了! ``` #include <bits/stdc++.h> using namespace std; int main(){ ios::sync_with_stdio(0); cin.tie(0); return 0; } ``` --- # I/O ### input / output ---- cout<< ; ``` #include <bits/stdc++.h> using namespace std; int main(){ ios::sync_with_stdio(0); cin.tie(0); cout<< "Hello DSCS!"; return 0; } ``` ---- cin>> ; ``` #include <bits/stdc++.h> using namespace std; int main(){ ios::sync_with_stdio(0); cin.tie(0); int n; // type name = value; cin>> n; cout<<ｎ; return 0; } ``` ---- zerojudge a001 --- # further IO optimization ---- ## #include <bits/stdc++.h> ---- ## ios::sync_with_stdio(0); ---- ## cin.tie(0);