View Compilation Error

0_0_11639356_6535.cpp:4:25: unordered_map: No such file or directory
0_0_11639356_6535.cpp:10: error: expected constructor, destructor, or type conversion before '<' token
0_0_11639356_6535.cpp:10: error: expected `,' or `;' before '<' token
0_0_11639356_6535.cpp: In function `void init()':
0_0_11639356_6535.cpp:81: error: `m' undeclared (first use this function)
0_0_11639356_6535.cpp:81: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_11639356_6535.cpp:82: error: `m2' undeclared (first use this function)
0_0_11639356_6535.cpp: In function `int main()':
0_0_11639356_6535.cpp:108: error: `m' undeclared (first use this function)
0_0_11639356_6535.cpp:111: error: `m2' undeclared (first use this function)