Compilare: user.cpp: In function ‘bool Word_Sort(Word, Word)’: user.cpp:24:24: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(Rank[W1.s[i]] < Rank[W2.s[i]]) return 1; ^ user.cpp:24:40: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(Rank[W1.s[i]] < Rank[W2.s[i]]) return 1; ^ user.cpp:25:24: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(Rank[W1.s[i]] > Rank[W2.s[i]]) return 0; ^ user.cpp:25:40: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(Rank[W1.s[i]] > Rank[W2.s[i]]) return 0; ^ user.cpp: In function ‘int main()’: user.cpp:39:41: warning: array subscript has type ‘char’ [-Wchar-subscripts] for(i = 0; i < 12; i++) Rank[Sign[i]] = i+1; ^ user.cpp:31:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen(inFile, "r", stdin); ^ user.cpp:32:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen(outFile, "w", stdout); ^ user.cpp:36:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d\n", &Type, &n); ^ user.cpp:38:15: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result [-Wunused-result] gets(Sign); ^ user.cpp:42:21: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result [-Wunused-result] gets(W[i].s); ^ /tmp/ccQqV8St.o: In function `main': user.cpp:(.text.startup+0x72): warning: the `gets' function is dangerous and should not be used.