摘要：
You are given three integers a≤b≤ca≤b≤c . In one move, you can add +1+1 or −1−1 to any of these integers (i.e. increase or decrease any number by one) 阅读全文
摘要：
You want to perform the combo on your opponent in one popular fighting game. The combo is the string ss consisting of nn lowercase Latin letters. To p 阅读全文
摘要：
output standard output You are given an array aa of length nn . You are also given a set of distinct positions p1,p2,…,pmp1,p2,…,pm , where 1≤pi<n1≤pi 阅读全文
摘要：
You are given two positive integers aa and bb . In one move, you can change aa in the following way: Choose any positive odd integer xx (x>0x>0 ) and 阅读全文