C. Traffic Lighttime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputYou find yourself on an unusual crossroad with a weird traffic light. That traffic

D. Divisibility by 2^ntime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputYou are given an array of positive integers a1,a2,…,an. Make the product of

time limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputYou are given n of integers a1,a2,…,an. Process q queries of two types: query of the form “0 xj”:

A. Number Replacementtime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputAn integer array a1,a2,…,an is being transformed into an array of lowercase E

B. Maximum Substring A binary string is a string consisting only of the characters 0 and 1. You are given a binary string s. For some non-empty substring† t of string s containing x characters 0 and y

A. Indirect Sort You are given a permutation a1,a2,…,an of size n, where each integer from 1 to n appears exactly once. You can do the following operation any number of times (possibly, zero): Choose

实验室第二次讲课#47. 时间转换说明给定一个以秒为单位的时间t，要求用的格式来表示这个时间。<H>表示时间，<M>表示分钟，而表示秒，它们都是整数且没有前导的“0”。例如，若t=0，则应输出是“”；若t=3661，则输出“”。 输入格式输入只有一行，是一个整数t（0<=t<=86399）。 输出格式输出只有一行，是以“”