Discussion @ 1421. Credit Operations @ Timus Online Judge

Lebedev_Nicolay[Ivanovo SPU] When the matrix can't be constructed? [1] // Problem 1421. Credit Operations 1 Aug 2009 20:13

I have WA 4, and I think because I never write "NO".
When answer is NO?
Wnen Sum of SR and SC are different or
when MaxFlow = 0 or when credit can't be < 100?

indawl Re: When the matrix can't be constructed? // Problem 1421. Credit Operations 20 Mar 2015 00:45

for example:
2
201 201
201 201
Answer is: "NO"
Becouse one of solve:
100 101
101 100
but 101 more then 100

Discussion of Problem 1421. Credit Operations