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(bright sound) - [Instructor] In this video, were going to learn how to code an election contract. We want to hold a free and fair election for a specified amount of time and only allow authorized people to vote in it. Well start by defining a custom data type called a struct, which allows us to group together other data types to define a candidate struct, where a candidate in the election will keep track of their name and the number of votes they currently have. Lets also define a struct for the voter that will store whether or not the voter has already voted and who they voted for. We need to keep track of the owner of the contract as they will have special rights to authorize voters. Well also keep a mapping to store voter information as well as a dynamically sized array of candidates that will be initialized on construction. The way to define an array is to simply use the square brackets after the data type of a variable. Well also keep track of the time when the election end