View Compilation Error

0_0_10942134_18725.cpp:12: error: expected constructor, destructor, or type conversion before '<' token
0_0_10942134_18725.cpp:12: error: expected `,' or `;' before '<' token
0_0_10942134_18725.cpp: In function `bool prework()':
0_0_10942134_18725.cpp:47: error: `hash' undeclared (first use this function)
0_0_10942134_18725.cpp:47: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_10942134_18725.cpp: In function `int main()':
0_0_10942134_18725.cpp:78: error: `MaxSize' undeclared (first use this function)
0_0_10942134_18725.cpp:101: error: cannot convert `std::pair<int, int>' to `LL' in assignment
0_0_10942134_18725.cpp:102: error: `hash' undeclared (first use this function)