View Compilation Error

480853_0_0_1094.cpp: In function `int main()':
480853_0_0_1094.cpp:16: error: `cin' undeclared (first use this function)
480853_0_0_1094.cpp:16: error: (Each undeclared identifier is reported only once for each function it appears in.)
480853_0_0_1094.cpp:29: error: `cout' undeclared (first use this function)
480853_0_0_1094.cpp:29: error: `endl' undeclared (first use this function)