Compilare: main.cpp: In function 'int main()': main.cpp:63:30: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses] 63 | if ((c[i][j] & 1 == 0) && !viz[i][j-1]) | ~~^~~~ main.cpp:100:52: warning: 'jja' may be used uninitialized in this function [-Wmaybe-uninitialized] 100 | out << ia << ' ' << ja << ' ' << iia << ' ' << jja; | ^~~ main.cpp:100:45: warning: 'iia' may be used uninitialized in this function [-Wmaybe-uninitialized] 100 | out << ia << ' ' << ja << ' ' << iia << ' ' << jja; | ^~~ main.cpp:100:31: warning: 'ja' may be used uninitialized in this function [-Wmaybe-uninitialized] 100 | out << ia << ' ' << ja << ' ' << iia << ' ' << jja; | ^~~ main.cpp:100:18: warning: 'ia' may be used uninitialized in this function [-Wmaybe-uninitialized] 100 | out << ia << ' ' << ja << ' ' << iia << ' ' << jja; | ^~~