View Compilation Error

160204_0_3425.cpp: In function `int main()':
160204_0_3425.cpp:10: error: `cin' undeclared (first use this function)
160204_0_3425.cpp:10: error: (Each undeclared identifier is reported only once for each function it appears in.)
160204_0_3425.cpp:35: error: `cout' undeclared (first use this function)
160204_0_3425.cpp:48: error: `endl' undeclared (first use this function)