Compilare: user.cpp: In function ‘int main()’: user.cpp:63:18: warning: format ‘%s’ expects argument of type ‘char*’, but argument 2 has type ‘char (*)[100]’ [-Wformat=] scanf("%s",&c); ^ user.cpp:61:11: warning: unused variable ‘f’ [-Wunused-variable] FILE *f=freopen("infinitepatternmatching.in","r",stdin),*g=freopen("infinitepatternmatching.out","w",stdout); ^ user.cpp:61:62: warning: unused variable ‘g’ [-Wunused-variable] FILE *f=freopen("infinitepatternmatching.in","r",stdin),*g=freopen("infinitepatternmatching.out","w",stdout); ^ user.cpp:63:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s",&c); ^