Compilare: user.cpp: In function ‘void bf(int, int, int (*)[1001][4])’: user.cpp:61: warning: unused variable ‘actdir’ user.cpp: In function ‘int main()’: user.cpp:84: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:85: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:88: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:102: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result user.cpp:111: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result /tmp/cc0EOe8z.o: In function `main': user.cpp:(.text+0x3ab): warning: the `gets' function is dangerous and should not be used.