View Compilation Error

574086_0_0_7950.cpp: In function `int main()':
574086_0_0_7950.cpp:5: error: `cin' undeclared (first use this function)
574086_0_0_7950.cpp:5: error: (Each undeclared identifier is reported only once for each function it appears in.)
574086_0_0_7950.cpp:7: error: `cout' undeclared (first use this function)
574086_0_0_7950.cpp:7: error: `endl' undeclared (first use this function)