xor2.cpp: In function 'int main()': xor2.cpp:36: warning: format '%i' expects type 'int*', but argument 2 has type 'long long int*' xor2.cpp:36: warning: format '%i' expects type 'int*', but argument 3 has type 'long long int*' xor2.cpp:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result xor2.cpp:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result xor2.cpp:36: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result xor2.cpp:39: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result