Compilare: main.cpp: In function 'void case0(int, int)': main.cpp:51:36: warning: 'c2' may be used uninitialized in this function [-Wmaybe-uninitialized] cout << l1 << " " << c1 << "\n"; ^~~~ main.cpp:51:23: warning: 'l2' may be used uninitialized in this function [-Wmaybe-uninitialized] cout << l1 << " " << c1 << "\n"; ^~~ main.cpp: In function 'void case1()': main.cpp:100:20: warning: 'l1' may be used uninitialized in this function [-Wmaybe-uninitialized] if(a[l1][c1] != 0) ~~~~~~~~^ main.cpp:100:20: warning: 'c1' may be used uninitialized in this function [-Wmaybe-uninitialized] main.cpp:93:27: warning: 'l2' may be used uninitialized in this function [-Wmaybe-uninitialized] cout << l1 << " " << c1 << "\n"; ^~~ main.cpp:93:40: warning: 'c2' may be used uninitialized in this function [-Wmaybe-uninitialized] cout << l1 << " " << c1 << "\n"; ^~~~