nkbiti.cpp: In function 'void init2(long long int (*)[55])': nkbiti.cpp:15: warning: unused variable 'j' nkbiti.cpp: In function 'void plog()': nkbiti.cpp:41: warning: unused variable 'i' nkbiti.cpp: In function 'int main()': nkbiti.cpp:65: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result nkbiti.cpp:66: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result nkbiti.cpp:67: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result