0_0_4041170_27333.cpp: In function `int DP()':
0_0_4041170_27333.cpp:41: error: invalid initialization of non-const reference of type 'std::pair<int, int>&' from a temporary of type 'std::pair<int, int>'
0_0_4041170_27333.cpp:14: error: in passing argument 2 of `std::pair<int, int> pmax(std::pair<int, int>&, std::pair<int, int>&)'
0_0_4041170_27333.cpp:51: error: invalid initialization of non-const reference of type 'std::pair<int, int>&' from a temporary of type 'std::pair<int, int>'
0_0_4041170_27333.cpp:14: error: in passing argument 2 of `std::pair<int, int> pmax(std::pair<int, int>&, std::pair<int, int>&)'
0_0_4041170_27333.cpp:66: error: invalid initialization of non-const reference of type 'std::pair<int, int>&' from a temporary of type 'std::pair<int, int>'
0_0_4041170_27333.cpp:14: error: in passing argument 2 of `std::pair<int, int> pmax(std::pair<int, int>&, std::pair<int, int>&)'
0_0_4041170_27333.cpp:76: error: invalid initialization of non-const reference of type 'std::pair<int, int>&' from a temporary of type 'std::pair<int, int>'
0_0_4041170_27333.cpp:14: error: in passing argument 2 of `std::pair<int, int> pmax(std::pair<int, int>&, std::pair<int, int>&)'
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