Compilare: user.cpp: In function ‘int main()’: user.cpp:29:37: warning: format ‘%ld’ expects argument of type ‘long int’, but argument 2 has type ‘int’ [-Wformat=] if (a[j]==1) printf("%ld ",j); ^ user.cpp:30:24: warning: format ‘%ld’ expects argument of type ‘long int’, but argument 2 has type ‘int’ [-Wformat=] printf("%ld\n",er); ^