I have some (say, n) marbles (small glass balls) and I am going to buy some boxes to store them. Theboxes are of two types:T ype 1: each box costs c1 Taka and can hold exactly n1 marblesT ype 2: each box costs c2 Taka and can hold exactly n2 marblesI…
题目链接:uva 10548 - Find the Right Changes 题目大意:给定A,B,C,求x,y,使得xA+yB=C,求有多少种解. 解题思路:拓展欧几里得,保证x,y均大于等于0,确定通解中t的取值. #include <cstdio> #include <cstring> #include <cmath> #include <algorithm> using namespace std; typedef long long ll; co…
Description Elina is reading a book written by Rujia Liu, which introduces a strange way to express non-negative integers. The way is described as following: Choose k different positive integers a1, a2, …, ak. For some non-negative m, divide it by ev…