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Relatives Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 15269   Accepted: 7731 Description Given n, a positive integer, how many positive integers less t

GCD                                                            Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)                                                  

Calculation 2                                                                    Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)                                    ...

青蛙的约会 Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 119313   Accepted: 25121 Description 两只青蛙在网上相识了，它们聊得很开心，于是觉得很有必要见一面。它们很高兴地发现它们住在同一条纬度线上，于是它们约定各自朝西跳，直

Bob has a not even coin, every time he tosses the coin, the probability that the coin's front face up is \frac{q}{p}(\frac{q}{p} \le \frac{1}{2})​p​​q​​(​p​​q​​≤​2​​1​​). The question is, when Bob

C. Line time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output A line on the plane is described by an equation Ax +

B. Proper Nutrition time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Vasya has n burles. One bottle of Ber-Co

‘ 解法1代码： //577ms #include #include #include #include #include #include #include #include #include #include #include using namespace std; typedef long long ll; const int inf = 0x3f3f3f3f;