title: 3 max flow prove or disprove small questions
body: <p>The questions are :</p>
  
  <p><a href="https://i.stack.imgur.com/qxO5K.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/qxO5K.png" alt="enter image description here"></a></p>
  
  <p>for (a) it seems like it is not true, we can fin an example of the flow growing without e being saturated.</p>
  
  <p>for (b) it seems true, yet i am not sure how to prove it. Maybe because of the
  min cut max flow theorm, it was on the min cut so it had to grew.</p>
  
  <p>for (c) it seems false. the flow grew because e changed but e might have not grew by exactly 5.</p>