View Compilation Error

0_0_10736338_6550.cpp:3:20: hash_map: No such file or directory
0_0_10736338_6550.cpp: In function `int main()':
0_0_10736338_6550.cpp:14: error: `hash_map' undeclared (first use this function)
0_0_10736338_6550.cpp:14: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_10736338_6550.cpp:14: error: expected primary-expression before "int"
0_0_10736338_6550.cpp:14: error: expected `;' before "int"
0_0_10736338_6550.cpp:18: error: `g' undeclared (first use this function)