Problem Description As one of the most powerful brushes, zhx submits a lot of code on many oj and most of them got AC. One day, zhx wants to count how many submissions he made on n ojs. He knows that on the ith oj, he made ai submissions. And what yo…
Problem Description As we already know, base64 is a common binary-to-text encoding scheme. Here we define a special series of positional systems that represent numbers using a base (a.k.a. radix) of 2 to 62. The symbols '0' – '9' represent zero to ni…
C - Pashmak and Buses Codeforces Round #261 (Div. 2) C. Pashmak and Buses time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Recently Pashmak has been employed in a transportation company. The…