View Compilation Error

0_0_10549720_30273.cpp: In function `int main()':
0_0_10549720_30273.cpp:8: error: `cin' undeclared (first use this function)
0_0_10549720_30273.cpp:8: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_10549720_30273.cpp:31: error: `cout' undeclared (first use this function)
0_0_10549720_30273.cpp:31: error: `setw' undeclared (first use this function)
0_0_10549720_30273.cpp:31: error: `setfill' undeclared (first use this function)
0_0_10549720_30273.cpp:39: error: `endl' undeclared (first use this function)