/in/foo.cc: In function 'int main()':
/in/foo.cc:21:6: error: 'i' was not declared in this scope
  for(i = 0; i < edge; i++)
      ^
/in/foo.cc:26:6: error: 'i' was not declared in this scope
  for(i = 0; i < edge; i++)
      ^
/in/foo.cc:60:6: error: 'i' was not declared in this scope
  for(i = 0; i < edge; i++)
      ^
/in/foo.cc:69:3: error: 'j' was not declared in this scope
   j = 0;
   ^
/in/foo.cc:73:7: error: 'i' was not declared in this scope
   for(i = j; i < edge; i++)
       ^