View Compilation Error

651744_0_0_26253.cpp: In function `int main()':
651744_0_0_26253.cpp:2: error: `cin' undeclared (first use this function)
651744_0_0_26253.cpp:2: error: (Each undeclared identifier is reported only once for each function it appears in.)
651744_0_0_26253.cpp:2: error: `cout' undeclared (first use this function)
651744_0_0_26253.cpp:2: error: `setprecision' undeclared (first use this function)
651744_0_0_26253.cpp:2: error: `fixed' undeclared (first use this function)
651744_0_0_26253.cpp:2: error: `endl' undeclared (first use this function)