team.cpp: In function 'int main()': team.cpp:47: warning: comparison between signed and unsigned integer expressions team.cpp:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result team.cpp:25: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result team.cpp:35: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result In file included from /usr/include/string.h:640, from /usr/include/c++/4.4/cstring:45, from team.cpp:4: In function 'void* memset(void*, int, size_t)', inlined from 'int main()' at team.cpp:41: /usr/include/bits/string3.h:86: warning: call to void* __builtin___memset_chk(void*, int, unsigned int, unsigned int) will always overflow destination buffer