int arr[5] = { 4, 5, 1, 0, 1 };
sort( arr, arr+5 );
cout<< lower_bound( arr, arr+5, 3 ) - arr <<endl;
What is the output int arr[5] = { 4, 5, 1, 0, 1 }; sort( arr, arr+5 ); cout<< lower_bound( arr, arr+5, 3 ) - arr <<endl;
@khanmahboob8877 the output is 3.
lower_bound returns an iterator to the lower bound element that value - arr gives us the index of that iterator because arr stores the base address.
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