Add files via upload

Author: YazhenLin

PWGDQ/Tasks/dqEnergyCorrelator_direct.cxx

@@ -61,15 +61,12 @@
 #include <cstddef>
 #include <cstdint>
 #include <cstdlib>
-#include <iostream>
 #include <map>
 #include <memory>
 #include <string>
 #include <utility>
 #include <vector>
 
-using std::cout;
-using std::endl;
 using std::string;
 
 using namespace o2;