Compilare: main.cpp: In member function 'HugeN HugeN::operator+(HugeN) const': main.cpp:27:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<nr.size() && i<a.nr.size();i++){ ~^~~~~~~~~~ main.cpp:27:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<nr.size() && i<a.nr.size();i++){ ~^~~~~~~~~~~~ main.cpp:32:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i<nr.size()){ ~^~~~~~~~~~ main.cpp:38:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i<a.nr.size()){ ~^~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:74:42: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d%d%d",&n,&m,&k,&dest); ^ main.cpp:77:26: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&x); ^ main.cpp:126:9: warning: 'cur' may be used uninitialized in this function [-Wmaybe-uninitialized] int cur,fost; ^~~