Compilare: user.cpp: In function ‘void sortare_topologica()’: user.cpp:41: warning: array subscript has type ‘char’ user.cpp:41: warning: comparison between signed and unsigned integer expressions user.cpp:43: warning: array subscript has type ‘char’ user.cpp:44: warning: array subscript has type ‘char’ user.cpp:46: warning: array subscript has type ‘char’ user.cpp: In function ‘void compute_path_length()’: user.cpp:62: warning: array subscript has type ‘char’ user.cpp:62: warning: comparison between signed and unsigned integer expressions user.cpp:64: warning: array subscript has type ‘char’ user.cpp:66: warning: array subscript has type ‘char’ user.cpp:67: warning: array subscript has type ‘char’ user.cpp:69: warning: array subscript has type ‘char’ user.cpp:71: warning: array subscript has type ‘char’ user.cpp:75: warning: array subscript has type ‘char’ user.cpp:76: warning: array subscript has type ‘char’ user.cpp: In function ‘void compute_path()’: user.cpp:93: warning: comparison between signed and unsigned integer expressions user.cpp:95: warning: array subscript has type ‘char’ user.cpp:97: warning: array subscript has type ‘char’ user.cpp:100: warning: array subscript has type ‘char’ user.cpp:102: warning: array subscript has type ‘char’ user.cpp:102: warning: array subscript has type ‘char’ user.cpp: In function ‘int main()’: user.cpp:123: warning: array subscript has type ‘char’ user.cpp:124: warning: array subscript has type ‘char’ user.cpp:125: warning: array subscript has type ‘char’ user.cpp:126: warning: array subscript has type ‘char’ user.cpp:113: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:114: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:116: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:122: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result