Compilare: main.cpp: In function 'int bfs()': main.cpp:32:35: warning: self-comparison always evaluates to true [-Wtautological-compare] 32 | if (mat[nextx][nexty] == mat[nextx][nexty] && mat[nextx][nexty] == 0 && viz[nextx][nexty] == 0) | ~~~~~~~~~~~~~~~~~ ^~ ~~~~~~~~~~~~~~~~~ main.cpp:43:1: warning: control reaches end of non-void function [-Wreturn-type] 43 | } | ^