Dinner, a kind of noodle soup with rice. Mr. Ping makes the best noodle soup and his son Po is eagerly awaiting user reviews on his father's blog. Users can vote on (+) or -- and +1 or -1 can be added to the number of points respectively. Note that if a user votes multiple times, only his or her latest vote is calculated from the total value. Po opens a blog to see the first 0 points. In order to see updated points without updating the page, they must continue to vote. After each click of Po (+) or (-), he can see the current total points, which takes Po's vote again. He wonders how many users without him would have voted. Judging by the sequence of clicks made by Po and the total number of points displayed immediately after each click, can you tell him the minimum number of users who are likely to vote at least once, without Po.
Control structures
Control structures are block of statements that analyze the value of variables and determine the flow of execution based on those values. When a program is running, the CPU executes the code line by line. After sometime, the program reaches the point where it has to make a decision on whether it has to go to another part of the code or repeat execution of certain part of the code. These results affect the flow of the program's code and these are called control structures.
Switch Statement
The switch statement is a key feature that is used by the programmers a lot in the world of programming and coding, as well as in information technology in general. The switch statement is a selection control mechanism that allows the variable value to change the order of the individual statements in the software execution via search.
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