View Compilation Error

0_0_12309103_3900.cpp:8:29: tr1/unordered_map: No such file or directory
0_0_12309103_3900.cpp:15: error: `tr1' has not been declared
0_0_12309103_3900.cpp:15: error: expected constructor, destructor, or type conversion before '<' token
0_0_12309103_3900.cpp:15: error: expected `,' or `;' before '<' token
0_0_12309103_3900.cpp: In function `int main()':
0_0_12309103_3900.cpp:83: error: `f' undeclared (first use this function)
0_0_12309103_3900.cpp:83: error: (Each undeclared identifier is reported only once for each function it appears in.)