Compilare: main.cpp: In function 'void fill(int, int)': main.cpp:24:22: warning: self-comparison always evaluates to true [-Wtautological-compare] 24 | if(mat[x][y] == mat[x][y] && ins[x][y] == 0) | ~~~~~~~~~ ^~ ~~~~~~~~~ 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 | } | ^ main.cpp: In function 'void fill(int, int)': main.cpp:23:27: warning: 'y' may be used uninitialized in this function [-Wmaybe-uninitialized] 23 | int x = x + dx[i],y = y + dy[i]; | ^ main.cpp:23:13: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized] 23 | int x = x + dx[i],y = y + dy[i]; | ^