Eroare de compilare: user.cpp:1:20: warning: extra tokens at end of #include directive [enabled by default] #include<iostream> #include<fstream> using namespace std; int main() { ifstream f("euclid2.in"); ofstream g("euclid2.out"); int n,a,b,r; f>>n; for(int i=1;i<=n;i++) { f>>a>>b; r=a%b; while(r) { a=b; b=r; r=a%b; } g<<b<<"\n"; } g.close(); f.close(); return 0; } ^ /usr/lib/crt1.o: In function `_start': (.text+0x18): undefined reference to `main' collect2: error: ld returned 1 exit status