View Compilation Error

85750_0_5716.cpp: In function `int main()':
85750_0_5716.cpp:4: error: `cin' undeclared (first use this function)
85750_0_5716.cpp:4: error: (Each undeclared identifier is reported only once for each function it appears in.)
85750_0_5716.cpp:25: error: `cout' undeclared (first use this function)
85750_0_5716.cpp:25: error: `endl' undeclared (first use this function)