Compilare: main.cpp: In function 'void Lee(int, int, int, int, int, int)': main.cpp:56:21: warning: overflow in implicit constant conversion [-Woverflow] sup[x2][y2]=9999999999; ^~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:113:10: warning: statement is a reference, not call, to function 'clean' [-Waddress] clean; ^ main.cpp:113:10: warning: statement has no effect [-Wunused-value]