0_0_25315837_27088.cpp: In function 'void preprocessBfs(const std::vector<std::pair<int, int> >&)':
0_0_25315837_27088.cpp:20:40: error: converting to 'std::queue<std::tuple<int, int, int> >::value_type {aka std::tuple<int, int, int>}' from initializer list would use explicit constructor 'constexpr std::tuple< <template-parameter-1-1> >::tuple(_UElements&& ...) [with _UElements = {const int&, const int&, int}; <template-parameter-2-2> = void; _Elements = {int, int, int}]'
q.push({it->first,it->second,0});
^
0_0_25315837_27088.cpp:31:43: error: converting to 'std::queue<std::tuple<int, int, int> >::value_type {aka std::tuple<int, int, int>}' from initializer list would use explicit constructor 'constexpr std::tuple< <template-parameter-1-1> >::tuple(_UElements&& ...) [with _UElements = {int&, int&, int}; <template-parameter-2-2> = void; _Elements = {int, int, int}]'
q.push({tx,ty,get<2>(t)+1});
^
0_0_25315837_27088.cpp: In function 'int bfs(int, int, int, int, int)':
0_0_25315837_27088.cpp:43:29: error: converting to 'std::queue<std::tuple<int, int, int> >::value_type {aka std::tuple<int, int, int>}' from initializer list would use explicit constructor 'constexpr std::tuple< <template-parameter-1-1> >::tuple(_UElements&& ...) [with _UElements = {int&, int&, int}; <template-parameter-2-2> = void; _Elements = {int, int, int}]'
q.push({beginX,beginY,0});
^
0_0_25315837_27088.cpp:58:43: error: converting to 'std::queue<std::tuple<int, int, int> >::value_type {aka std::tuple<int, int, int>}' from initializer list would use explicit constructor 'constexpr std::tuple< <template-parameter-1-1> >::tuple(_UElements&& ...) [with _UElements = {int&, int&, int}; <template-parameter-2-2> = void; _Elements = {int, int, int}]'
q.push({tx,ty,get<2>(t)+1});
^
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