View Compilation Error

140651_0_24370.cpp
140651_0_24370.cpp(1) : error C2871: 'std' : does not exist or is not a namespace
140651_0_24370.cpp(25) : error C2065: 'cin' : undeclared identifier
140651_0_24370.cpp(26) : error C2065: 'cout' : undeclared identifier
140651_0_24370.cpp(26) : error C2065: 'endl' : undeclared identifier
140651_0_24370.cpp(26) : warning C4552: '<<' : operator has no effect; expected operator with side-effect