Compilare: user.cpp: In function ‘int main()’: user.cpp:153:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<=strlen(s)-2;i++){ ^ user.cpp:211:38: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘long int’ [-Wformat=] fprintf(g,"%d.%02d\n", sol1, sol2); ^ user.cpp:211:38: warning: format ‘%d’ expects argument of type ‘int’, but argument 4 has type ‘long int’ [-Wformat=]