Compilare: main.cpp:1:2: warning: #import is a deprecated GCC extension [-Wdeprecated] #import<fstream> ^~~~~~ main.cpp:2:35: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type] int X,Y,x,y,n,i=1,s,S[40005];main(){std::ifstream{"piata.in"}>>n>>X>>Y>>x>>y;while(i<=n)S[i]=S[i/10]+i++%10;for(i=Y;i<=y;)s+=S[(n-x+i)%n+1]*std::min(i++-Y+1,x-X+1);for(i=X;i<x;)s+=S[(n-i+y)%n+1]*std::min(y-Y+1,i++-X+1);std::ofstream{"piata.out"}<<s;} ^ main.cpp: In function 'int main()': main.cpp:2:103: warning: operation on 'i' may be undefined [-Wsequence-point] int X,Y,x,y,n,i=1,s,S[40005];main(){std::ifstream{"piata.in"}>>n>>X>>Y>>x>>y;while(i<=n)S[i]=S[i/10]+i++%10;for(i=Y;i<=y;)s+=S[(n-x+i)%n+1]*std::min(i++-Y+1,x-X+1);for(i=X;i<x;)s+=S[(n-i+y)%n+1]*std::min(y-Y+1,i++-X+1);std::ofstream{"piata.out"}<<s;} ~^~ main.cpp:2:103: warning: operation on 'i' may be undefined [-Wsequence-point] main.cpp:2:151: warning: operation on 'i' may be undefined [-Wsequence-point] int X,Y,x,y,n,i=1,s,S[40005];main(){std::ifstream{"piata.in"}>>n>>X>>Y>>x>>y;while(i<=n)S[i]=S[i/10]+i++%10;for(i=Y;i<=y;)s+=S[(n-x+i)%n+1]*std::min(i++-Y+1,x-X+1);for(i=X;i<x;)s+=S[(n-i+y)%n+1]*std::min(y-Y+1,i++-X+1);std::ofstream{"piata.out"}<<s;} ~^~ main.cpp:2:212: warning: operation on 'i' may be undefined [-Wsequence-point] int X,Y,x,y,n,i=1,s,S[40005];main(){std::ifstream{"piata.in"}>>n>>X>>Y>>x>>y;while(i<=n)S[i]=S[i/10]+i++%10;for(i=Y;i<=y;)s+=S[(n-x+i)%n+1]*std::min(i++-Y+1,x-X+1);for(i=X;i<x;)s+=S[(n-i+y)%n+1]*std::min(y-Y+1,i++-X+1);std::ofstream{"piata.out"}<<s;} ~^~