Compilare: main.cpp: In function 'void BFS()': main.cpp:73:10: warning: 'col' may be used uninitialized [-Wmaybe-uninitialized] 73 | fprintf(fout, "%d %d %d", lenght - 2, lin, col); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:26:27: note: 'col' was declared here 26 | int i, lenght = 2, lin, col; | ^~~ main.cpp:73:10: warning: 'lin' may be used uninitialized [-Wmaybe-uninitialized] 73 | fprintf(fout, "%d %d %d", lenght - 2, lin, col); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:26:22: note: 'lin' was declared here 26 | int i, lenght = 2, lin, col; | ^~~