1st is a Russian who solved 1801 problems,
5th is a Japanese who solved 1620 problems,
13nd is a Taiwanese who solved 1282 problems,
2287rd is me who solved 112 problems,
They are far far far away from me.......
也可能造成程式 TLE ( Time Limited Exceed ),
像是 880 - Cantor Fractions
需要宣告至 unsigned long long
演算法沒錯, 但是如果宣告成 long 或 long long,
就會造成程式 TLE,
不過還不知道是為什麼. @@
