we have two accepted code for 596C:↵
↵
http://mirror.codeforces.com/contest/596/submission/14293038↵
↵
http://mirror.codeforces.com/contest/596/submission/14278646↵
↵
and a test case:↵
↵
11↵
0 0 ↵
0 1↵
0 2↵
1 0↵
1 1↵
1 2↵
2 0↵
2 1↵
2 2↵
3 0↵
3 1↵
0 1 -1 2 0 -2 1 -1 0 -2 -3↵
↵
↵
and two answer :)↵
↵
↵
NO↵
↵
__________________________________ ↵
↵
YES↵
0 0↵
0 1↵
1 0↵
0 2↵
1 1↵
2 0↵
1 2↵
2 1↵
2 2↵
3 1↵
3 0↵
↵
I have nothing to sayZlobober, come back.
↵
http://mirror.codeforces.com/contest/596/submission/14293038↵
↵
http://mirror.codeforces.com/contest/596/submission/14278646↵
↵
and a test case:↵
↵
11↵
0 0 ↵
0 1↵
0 2↵
1 0↵
1 1↵
1 2↵
2 0↵
2 1↵
2 2↵
3 0↵
3 1↵
0 1 -1 2 0 -2 1 -1 0 -2 -3↵
↵
↵
and two answer :)↵
↵
↵
NO↵
↵
__________________________________ ↵
↵
YES↵
0 0↵
0 1↵
1 0↵
0 2↵
1 1↵
2 0↵
1 2↵
2 1↵
2 2↵
3 1↵
3 0↵
↵