View Compilation Error

0_0_1108437_8918.cpp: In function `int main()':
0_0_1108437_8918.cpp:16: error: `cin' undeclared (first use this function)
0_0_1108437_8918.cpp:16: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_1108437_8918.cpp:24: error: `cout' undeclared (first use this function)
0_0_1108437_8918.cpp:64: error: `endl' undeclared (first use this function)