Compilare: main.cpp:8:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type] main() ^ main.cpp: In function 'int main()': main.cpp:11:10: warning: unused variable 'ch' [-Wunused-variable] char ch; ^~ main.cpp:35:9: warning: unused variable 'aux' [-Wunused-variable] int aux,ins=0,j; ^~~ main.cpp:35:13: warning: unused variable 'ins' [-Wunused-variable] int aux,ins=0,j; ^~~ main.cpp:35:19: warning: unused variable 'j' [-Wunused-variable] int aux,ins=0,j; ^