You might not need Websockets

What's a WebSocket? If you're new to web development or you haven't heard of a WebSocket before, they're a way to open a two-way communication channel between the client and server using HTTP...
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Map

map = key , value pair Unique value only -> Depends on key Always sorted depends on key ⛶#include using namespace std; int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); ...
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