Compilare: main.cpp: In function 'void bfs()': main.cpp:49:16: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses] if (i >= 1 && i <= n && j >= 1 && j <= m) ^ main.cpp:51:30: warning: 'j' may be used uninitialized in this function [-Wmaybe-uninitialized] if (graf[i][j] == graf[x][y] && costdrum[i][j] > costdrum[x][y]) ~~~~~~~~~^ main.cpp:49:13: warning: 'i' may be used uninitialized in this function [-Wmaybe-uninitialized] if (i >= 1 && i <= n && j >= 1 && j <= m) ^~