This code snippet uses a range-based for loop to iterate over each element in the container a and prints each element followed by a space. The auto keyword is used to automatically deduce the type of the elements in a, and x is a temporary variable that represents each element in the loop.\n\nHere's an example of how this code might be used:\n\ncpp\n#include <iostream>\n#include <vector>\n\nint main() {\n std::vector<int> a = {1, 2, 3, 4, 5};\n \n for (auto x : a) {\n std::cout << x << ' ';\n }\n \n return 0;\n}\n\n\nOutput:\n\n1 2 3 4 5\n


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