nkbiti.cpp: In function 'void init2(long long int (*)[55])': nkbiti.cpp:18: warning: unused variable 'j' nkbiti.cpp: In function 'void plog()': nkbiti.cpp:50: warning: unused variable 'i' nkbiti.cpp: In function 'int main()': nkbiti.cpp:77: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result nkbiti.cpp:78: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result nkbiti.cpp:79: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result