Compilare: user.cpp: In function ‘void BuildAInt(long int, long int, long int)’: user.cpp:34:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while((posl<aint[left].size())&&(posr<aint[right].size())){ ^ user.cpp:34:60: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while((posl<aint[left].size())&&(posr<aint[right].size())){ ^ user.cpp:42:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(posl<aint[left].size()) aint[nod].pb(aint[left][posl++]); ^ user.cpp:43:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(posr<aint[right].size()) aint[nod].pb(aint[right][posr++]); ^ user.cpp: In function ‘int main()’: user.cpp:113:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("zoo.in","r",stdin); ^ user.cpp:114:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("zoo.out","w",stdout); ^ user.cpp:116:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%ld",&n); ^ user.cpp:117:55: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(i=1;i<=n;i++) scanf("%ld %ld",&p[i].x,&p[i].y); ^ user.cpp:122:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%ld",&m); ^ user.cpp:124:57: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%ld %ld %ld %ld",&p1.x,&p1.y,&p2.x,&p2.y); ^