Compilare: user.cpp: In function ‘int checkeq(int)’: user.cpp:51: warning: no return statement in function returning non-void user.cpp: In function ‘int main()’: user.cpp:55: warning: format ‘%s’ expects type ‘char*’, but argument 2 has type ‘char (*)[2000005]’ user.cpp:56: warning: format ‘%s’ expects type ‘char*’, but argument 2 has type ‘char (*)[2000005]’ user.cpp:53: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:54: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:55: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:56: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result