rj.cpp: In function 'void lee(int, int, int (*)[105])': rj.cpp:18: warning: unused variable 'j' rj.cpp: In function 'int main()': rj.cpp:40: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result rj.cpp:41: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result rj.cpp:43: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result rj.cpp:46: warning: ignoring return value of 'char* gets(char*)', declared with attribute warn_unused_result rj.cpp:42: warning: 'xr' may be used uninitialized in this function rj.cpp:42: warning: 'yr' may be used uninitialized in this function rj.cpp:42: warning: 'xj' may be used uninitialized in this function rj.cpp:42: warning: 'yj' may be used uninitialized in this function rj.cpp:42: warning: 'x' may be used uninitialized in this function rj.cpp:42: warning: 'y' may be used uninitialized in this function /tmp/ccfUlg64.o: In function `main': rj.cpp:(.text+0x560): warning: the `gets' function is dangerous and should not be used.