Compilare: user.cpp: In function ‘char* nuc(int)’: user.cpp:37:11: warning: array subscript has type ‘char’ [-Wchar-subscripts] t[i]=s[n%12]; ^ user.cpp: In function ‘int main()’: user.cpp:50:23: warning: format ‘%s’ expects argument of type ‘char*’, but argument 3 has type ‘char (*)[13]’ [-Wformat=] fscanf(f,"%s\n",&s); ^ user.cpp:56:29: warning: format ‘%s’ expects argument of type ‘char*’, but argument 3 has type ‘char (*)[6]’ [-Wformat=] fscanf(f,"%s\n",&cuv); ^ user.cpp:49:27: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d",&p,&n); ^ user.cpp:50:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%s\n",&s); ^ user.cpp:56:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%s\n",&cuv); ^