CSUST_ACM的专栏

Description There is a discrete function. It is specified for integer arguments from 1 to N (2 ≤ N ≤ 100000). Each value of the function is longint (signed long in C++). You have to find such two

A Mathematical Curiosity 转载自傻B园 Problem Description Given two integers n and m, count the number of pairs of integers (a,b) such that 0 This problem contains multiple test cases! The f