Compilare: user.cpp: In function ‘int transform()’: user.cpp:14:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] rez+=fq[s[i]]*pw; ^ user.cpp: In function ‘int main()’: user.cpp:38:33: warning: array subscript has type ‘char’ [-Wchar-subscripts] for (i=0; i<12; ++i) fq[s[i]]=i; ^ user.cpp:33:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("zimeria.in","r",stdin); ^ user.cpp:34:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("zimeria.out","w",stdout); ^ user.cpp:35:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&k,&n); ^ user.cpp:36:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s",s); ^ user.cpp:41:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s",s); ^