Problem Description Your task is to Calculate the sum of some integers.

Problem Description Your task is to Calculate a + b.

Problem Description Your task is to Calculate a + b.

Problem Description Your task is to Calculate a + b. Too easy?! Of course! I specially designed

Problem Description Larry graduated this year and finally has a job. He’s making a lot of money, but somehow never seems to have enough. Larry has decided tha...

Problem Description Hey, welcome to HDOJ(Hangzhou Dianzi University Online Judge).

Problem Description In many applications very large integers numbers are required. Some of these applications are using keys for secure transmission of data, ...

Problem Description RPG girls今天和大家一起去游乐场玩，终于可以坐上梦寐以求的过山车了。可是，过山车的每一排只有两个座位，而且还有条不成文的规矩，就是每个女生必须找个个男生做partner和她同坐。但是，每个女孩都有...

Problem Description There are another kind of Fibonacci numbers: F(0) = 7, F(1) = 11, F(n) = F(n-1) + F(n-2) (n>=2).

The digital root of a positive integer is found by summing the digits of the integer. If the resulting value is a single digit then that digit is the digital ...