Compilare: user.cpp: In function ‘int main()’: user.cpp:33:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(strlen(s[i])>mLen) ^ user.cpp:35:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if(strlen(s[i])==mLen&&s[i]<s[mLen]) ^ user.cpp:26:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("interesant.in","r",stdin); ^ user.cpp:27:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("interesant.out","w",stdout); ^ user.cpp:29:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&p,&n); ^ user.cpp:32:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s",s[i]); ^ user.cpp:39:30: warning: ‘mIndex’ may be used uninitialized in this function [-Wmaybe-uninitialized] printf("%s",s[mIndex]); ^