View Compilation Error

116621_0_30877.c
116621_0_30877.c(6) : error C2065: 'cin' : undeclared identifier
116621_0_30877.c(6) : error C2296: '>>' : illegal, left operand has type 'double '
116621_0_30877.c(6) : error C2297: '>>' : illegal, right operand has type 'double '
116621_0_30877.c(9) : error C2065: 'cout' : undeclared identifier
116621_0_30877.c(9) : warning C4013: 'setprecision' undefined; assuming extern returning int
116621_0_30877.c(9) : error C2296: '<<' : illegal, left operand has type 'double '
116621_0_30877.c(9) : error C2297: '<<' : illegal, right operand has type 'double '
116621_0_30877.c(9) : error C2065: 'endl' : undeclared identifier