Compilare: user.cpp: In function ‘int max(int, int, int)’: user.cpp:12:6: warning: unused variable ‘blackjack’ [-Wunused-variable] int blackjack,hookers; ^ user.cpp:12:16: warning: unused variable ‘hookers’ [-Wunused-variable] int blackjack,hookers; ^ user.cpp: In function ‘int min(int, int, int)’: user.cpp:23:6: warning: unused variable ‘blackjack’ [-Wunused-variable] int blackjack,hookers; ^ user.cpp:23:16: warning: unused variable ‘hookers’ [-Wunused-variable] int blackjack,hookers; ^ user.cpp: In function ‘int main()’: user.cpp:51:92: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if( (max(cost(1,i),cost(i,j),cost(j,n) ) - min(cost(1,i),cost(i,j),cost(j,n ) ))<min3) ^ user.cpp: In function ‘int max(int, int, int)’: user.cpp:20:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘int min(int, int, int)’: user.cpp:30:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:58:26: warning: ‘pos2’ may be used uninitialized in this function [-Wmaybe-uninitialized] fout<<pos1-2<<" "<<pos2-1; ^ user.cpp:58:13: warning: ‘pos1’ may be used uninitialized in this function [-Wmaybe-uninitialized] fout<<pos1-2<<" "<<pos2-1; ^