View Compilation Error

215438_0_12287.cpp: In function `int main()':
215438_0_12287.cpp:5: error: `cin' undeclared (first use this function)
215438_0_12287.cpp:5: error: (Each undeclared identifier is reported only once for each function it appears in.)
215438_0_12287.cpp:24: error: `cout' undeclared (first use this function)
215438_0_12287.cpp:26: error: `endl' undeclared (first use this function)