Compilare: user.cpp: In function ‘int checkeq(int)’: user.cpp:45: warning: no return statement in function returning non-void user.cpp: In function ‘int main()’: user.cpp:49: warning: format ‘%s’ expects type ‘char*’, but argument 2 has type ‘char (*)[2000005]’ user.cpp:50: warning: format ‘%s’ expects type ‘char*’, but argument 2 has type ‘char (*)[2000005]’ user.cpp:47: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:48: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:49: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:50: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result