Compilare: main.cpp: In function 'int main()': main.cpp:247:36: warning: 'c3' may be used uninitialized in this function [-Wmaybe-uninitialized] 247 | fout << l3 << " " << c3 << "\n"; | ^~~~ main.cpp:247:23: warning: 'l3' may be used uninitialized in this function [-Wmaybe-uninitialized] 247 | fout << l3 << " " << c3 << "\n"; | ^~~ main.cpp:246:38: warning: 'c2' may be used uninitialized in this function [-Wmaybe-uninitialized] 246 | fout << l2 << " " << c2 << "\n" << l1 << " " << c1 << "\n"; | ^~~~ main.cpp:246:65: warning: 'c1' may be used uninitialized in this function [-Wmaybe-uninitialized] 246 | fout << l2 << " " << c2 << "\n" << l1 << " " << c1 << "\n"; | ^~~~ main.cpp:246:25: warning: 'l2' may be used uninitialized in this function [-Wmaybe-uninitialized] 246 | fout << l2 << " " << c2 << "\n" << l1 << " " << c1 << "\n"; | ^~~ main.cpp:246:52: warning: 'l1' may be used uninitialized in this function [-Wmaybe-uninitialized] 246 | fout << l2 << " " << c2 << "\n" << l1 << " " << c1 << "\n"; | ^~~ main.cpp:131:20: warning: 'j' may be used uninitialized in this function [-Wmaybe-uninitialized] 131 | if( i == n + 1 && j == n + 1 ) { | ~~~~~~~~~~~^~~~~~~~~~~~~