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What will be the output of the following C++ code? #include<iostream> #include<iterator> #include<vector> using namespace std; int main() { vector<int> ar = { 1, 2, 3, 4, 5 }; vector<int>::iterator ptr = ar.begin(); advance(ptr, 2); cout << *ptr << endl; return 0; }
What is the correct way to declare a function in C that takes no arguments and returns an integer?
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