View Compilation Error

151763_0_27065.cpp: In function `int main()':
151763_0_27065.cpp:6: error: `cin' undeclared (first use this function)
151763_0_27065.cpp:6: error: (Each undeclared identifier is reported only once for each function it appears in.)
151763_0_27065.cpp:8: error: `memset' undeclared (first use this function)
151763_0_27065.cpp:15: error: `swap' undeclared (first use this function)
151763_0_27065.cpp:24: error: `cout' undeclared (first use this function)
151763_0_27065.cpp:24: error: `endl' undeclared (first use this function)