Compilare: user.cpp: In function ‘int main()’: user.cpp:13:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<=n;i++)cin>>s1[i]; ^ user.cpp:16:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=2;i<=n;i++){ ^ user.cpp:37:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<=n;i++) ^ user.cpp:38:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=1;j<=n;j++)if(s1[i]==s2[j])k++; ^ user.cpp:25:6: warning: unused variable ‘curent’ [-Wunused-variable] int curent=1,k=0; ^ user.cpp:9:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("crescator3.in","r",stdin); ^ user.cpp:10:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("crescator3.out","w",stdout); ^