Compilare: main.cpp: In function 'void read()': main.cpp:58:38: warning: narrowing conversion of 'nr' from 'int' to 'uint64_t {aka long unsigned int}' inside { } [-Wnarrowing] Queue.push({i, j, nr}); ^ main.cpp: In function 'void solve()': main.cpp:93:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < W.size(); ++i) ~~^~~~~~~~~~ main.cpp:107:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < S.size(); ++i) ~~^~~~~~~~~~ main.cpp:110:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(mt[c.x][c.y].acc == cp) ~~~~~~~~~~~~~~~~~^~~~~