Compilare: user.cpp: In function ‘void adun(nrmare&)’: user.cpp:35:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(n.v[i]==10&&i<n.v.size()-1) ^ user.cpp: In function ‘void scad(nrmare&)’: user.cpp:52:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(n.v[i]==-1&&i<n.v.size()-1) ^ user.cpp: In function ‘int main()’: user.cpp:80:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("doi.in","r",stdin); ^ user.cpp:81:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("doi.out","w",stdout); ^ user.cpp:82:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n",&t); ^