View Compilation Error

0_0_34737338_18517.cpp: In function 'int main()':
0_0_34737338_18517.cpp:38:29: error: converting to 'std::queue<std::tuple<int, int, int, int> >::value_type {aka std::tuple<int, int, int, int>}' from initializer list would use explicit constructor 'constexpr std::tuple< <template-parameter-1-1> >::tuple(_UElements&& ...) [with _UElements = {int, int, int&, int}; <template-parameter-2-2> = void; _Elements = {int, int, int, int}]'
   Q.push({ 1,1,key[1][1],0 });
                             ^
0_0_34737338_18517.cpp:54:51: error: converting to 'std::queue<std::tuple<int, int, int, int> >::value_type {aka std::tuple<int, int, int, int>}' from initializer list would use explicit constructor 'constexpr std::tuple< <template-parameter-1-1> >::tuple(_UElements&& ...) [with _UElements = {int&, int&, int, int}; <template-parameter-2-2> = void; _Elements = {int, int, int, int}]'
      Q.push({ nx,ny,state | key[nx][ny], dis + 1 });
                                                   ^