hanoi.cpp: In function 'void date()': hanoi.cpp:11: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result hanoi.cpp:12: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result hanoi.cpp:16: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result hanoi.cpp:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result hanoi.cpp:22: warning: ignoring return value of 'char* fgets(char*, int, FILE*)', declared with attribute warn_unused_result hanoi.cpp: In function 'void deplasare()': hanoi.cpp:76: warning: unused variable 'vechil' hanoi.cpp:76: warning: unused variable 'vechic' hanoi.cpp: In function 'int main()': hanoi.cpp:128: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result hanoi.cpp:129: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result