Compilare: user.cpp: In function ‘int main()’: user.cpp:21:24: warning: format ‘%s’ expects argument of type ‘char*’, but argument 3 has type ‘char (*)[20]’ [-Wformat=] fscanf(in, "%s", &c); ^ user.cpp:24:16: warning: array subscript has type ‘char’ [-Wchar-subscripts] priority[c[i]] = i; ^ user.cpp:30:22: warning: format ‘%s’ expects argument of type ‘char*’, but argument 3 has type ‘char (*)[20]’ [-Wformat=] fscanf(in, "%s", &c); ^ user.cpp:33:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] x += priority[c[i]]; ^ user.cpp:19:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d %d", &t, &n); ^ user.cpp:21:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%s", &c); ^ user.cpp:30:23: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%s", &c); ^