UVa 10061 - How many zero's and how many digits ?
2016-03-02
题目地址
描述 给定 n ( n < 2 2 1 ) , B ( 1 < B ≤ 8 0 0 ) n(n<2^{21}), B(1< B\le 800) n ( n < 2 2 1 ) , B ( 1 ......
UVa 10892 - LCM Cardinality
2016-02-16
题目地址
描述 给定正整数 n ( 1 ≤ n ≤ 2 0 0 0 0 0 0 0 0 0 ) n(1\le n\le 2000000000) n ( 1 ≤ n ≤ 2 0 0 0 0 0 0 0 0 0 ) ，统计有多少个整数对 ( a , b ) (......
