Compilare: main.cpp:1:2: warning: #import is a deprecated GCC extension [-Wdeprecated] #import<fstream> ^~~~~~ main.cpp:5:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type] main() ^ main.cpp: In function 'int main()': main.cpp:12:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(c>>N;i<=N.length();i++)x[i]=N[i]-48,x[i]?:x[i]=11,i-N.length()?:x[i]=12;for(;j<15*x[j]>0;p=x[j++]){p==x[N.length()]?s=12:s=x[j];A=--p%3;B=--s%3;C=p/3;D=s/3;if(A<B)o<<" DR "<<B-A;if(A>B)o<<" ST "<<A-B;if(C<D)o<<" J "<<D-C;if(C>D)o<<" S "<<C-D;if(s!=11)o<<" A ";}} ~^~~~~~~~~~~~ main.cpp:12:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(c>>N;i<=N.length();i++)x[i]=N[i]-48,x[i]?:x[i]=11,i-N.length()?:x[i]=12;for(;j<15*x[j]>0;p=x[j++]){p==x[N.length()]?s=12:s=x[j];A=--p%3;B=--s%3;C=p/3;D=s/3;if(A<B)o<<" DR "<<B-A;if(A>B)o<<" ST "<<A-B;if(C<D)o<<" J "<<D-C;if(C>D)o<<" S "<<C-D;if(s!=11)o<<" A ";}} ^~~ main.cpp:12:81: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' for(c>>N;i<=N.length();i++)x[i]=N[i]-48,x[i]?:x[i]=11,i-N.length()?:x[i]=12;for(;j<15*x[j]>0;p=x[j++]){p==x[N.length()]?s=12:s=x[j];A=--p%3;B=--s%3;C=p/3;D=s/3;if(A<B)o<<" DR "<<B-A;if(A>B)o<<" ST "<<A-B;if(C<D)o<<" J "<<D-C;if(C>D)o<<" S "<<C-D;if(s!=11)o<<" A ";}} ^~~ main.cpp:12:87: warning: comparisons like 'X<=Y<=Z' do not have their mathematical meaning [-Wparentheses] for(c>>N;i<=N.length();i++)x[i]=N[i]-48,x[i]?:x[i]=11,i-N.length()?:x[i]=12;for(;j<15*x[j]>0;p=x[j++]){p==x[N.length()]?s=12:s=x[j];A=--p%3;B=--s%3;C=p/3;D=s/3;if(A<B)o<<" DR "<<B-A;if(A>B)o<<" ST "<<A-B;if(C<D)o<<" J "<<D-C;if(C>D)o<<" S "<<C-D;if(s!=11)o<<" A ";}} ~^~~~~~~~