Compilare: main.cpp: In function 'int bfs()': main.cpp:39:26: warning: self-comparison always evaluates to true [-Wtautological-compare] 39 | if(mat[x][y] == mat[x][y] && mat[x][y] == 0 && viz[x][y] == 0) | ~~~~~~~~~ ^~ ~~~~~~~~~ main.cpp:50:1: warning: control reaches end of non-void function [-Wreturn-type] 50 | } | ^