View Compilation Error

198866_0_32050.cpp:2: error: expected constructor, destructor, or type conversion before "namespace"
198866_0_32050.cpp:2: error: expected `,' or `;' before "namespace"
198866_0_32050.cpp: In function `int main()':
198866_0_32050.cpp:7: error: `cin' undeclared (first use this function)
198866_0_32050.cpp:7: error: (Each undeclared identifier is reported only once for each function it appears in.)
198866_0_32050.cpp:10: error: `cout' undeclared (first use this function)
198866_0_32050.cpp:10: error: `endl' undeclared (first use this function)