Provide the best algorithm for all the problems below. Write their running time functions using Big-O notation. a. Find the inner product of two vectors v1 and v2, each of size n.
b. Find the number of occurrences of an element t in a vector/array v, of size n.
c. Concatenate two strings, each of n characters long.
d. Remove the i-th element from a vector/array.
e. Find in a vector/array the sum of only those elements which are less than 43.
f. Add an element to the beginning/end of a vector/array v.

What did i do wrong with this const discord = require('discord.js'); var bot = new discord.client(); const token = 'ntm3mjcxmtu1mjg3ote2ntq2.dyogew.dpfiwfpuifzuzvifop-csuxasnm' const prefix = "! " bot.registry.registergroup('simple', 'simple'); bot.registry.registerdefaults(); bot.registry. + '/commands'); bot.on('message', message => { if(message.content == 'hi! ') { message.channel.send ('@everyone sup, how is @everyone day going'); } if(message.content == 'h3lp') { message.channel.send ('dose not have any commands yet'); } bot.on('ready', function() { console.log("ready") }); bot.login(token);