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View Compilation Error

0_0_4441061_22562.cpp:1:20: hash_set: No such file or directory
0_0_4441061_22562.cpp:2:20: hash_map: No such file or directory
0_0_4441061_22562.cpp:3:19: regex.h: No such file or directory
0_0_4441061_22562.cpp: In function `int main()':
0_0_4441061_22562.cpp:22: error: `hash_map' undeclared (first use this function)
0_0_4441061_22562.cpp:22: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_4441061_22562.cpp:22: error: expected primary-expression before "char"
0_0_4441061_22562.cpp:22: error: expected `;' before "char"
0_0_4441061_22562.cpp:23: error: `hash_set' undeclared (first use this function)
0_0_4441061_22562.cpp:23: error: expected primary-expression before '>' token
0_0_4441061_22562.cpp:23: error: `Q' undeclared (first use this function)
0_0_4441061_22562.cpp:28: error: `Map' undeclared (first use this function)
0_0_4441061_22562.cpp:29: error: `make_pair' undeclared (first use this function)


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