How is this for loop working

#1

for(auto c:s1){
cout<<c <<",";
}
i am not able to understnd the impleemention of this

#2

Hey
Here s1 denotes the string or vector or array you’re iterating upon, c starts from the first element and goes till last element, printing this just prints the whole array/string/vector
it’s just a short syntax for

for(int i = 0; i < s1.size(); i++){
cout << s1[i] << “,”;
}

You can use any of them.

#3

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