div.cpp: In function 'void Read()': div.cpp:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result div.cpp:15: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result div.cpp:16: warning: ignoring return value of 'char* fgets(char*, int, FILE*)', declared with attribute warn_unused_result div.cpp: In function 'void Solve()': div.cpp:61: warning: array subscript has type 'char' div.cpp:67: warning: array subscript has type 'char' div.cpp:72: warning: array subscript has type 'char' div.cpp:72: warning: array subscript has type 'char' div.cpp: In function 'int main()': div.cpp:84: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result div.cpp:85: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result