Compilare: main.cpp:1:2: warning: #import is a deprecated GCC extension [-Wdeprecated] #import<fstream> ^~~~~~ main.cpp:2:2: warning: #import is a deprecated GCC extension [-Wdeprecated] #import<string> ^~~~~~ main.cpp:3:51: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type] using namespace std;string s;long long d,r,i;main(){ifstream I("next.in");ofstream O("next.out");I>>s>>d;for(i=0;i<s.size();i++)r=(r*10+s[i]-'0')%d;d-=(!r)?d:r;for(i=s.size()-1;i>=0;i--)d+=s[i]-'0',s[i]=char(d%10+'0'),d/=10;if(d)O<<d;O<<s;} ^ main.cpp: In function 'int main()': main.cpp:3:115: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] using namespace std;string s;long long d,r,i;main(){ifstream I("next.in");ofstream O("next.out");I>>s>>d;for(i=0;i<s.size();i++)r=(r*10+s[i]-'0')%d;d-=(!r)?d:r;for(i=s.size()-1;i>=0;i--)d+=s[i]-'0',s[i]=char(d%10+'0'),d/=10;if(d)O<<d;O<<s;} ~^~~~~~~~~