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Table tennis mathematics
Because 1. A and b tied for first place. 2.c and D tied for third place, with the winner getting 2 points and the loser getting 0 points.

So A B won as many games, C D won as many games, and E ranked fifth.

Let's assume that A won four games and scored eight points, then B can only win three games, which is unreasonable.

So A won three games and B won three games. Suppose A loses to C, and then B loses to A, so B wins CDE.

Then C D won two games each, so D can only win C E, and C won A E, so E lost all.

Only o points.

X stands for winning and O stands for losing.

Look from left to right.

- A-B-C-D-E

A - x-o-x-x

B-o - x-x-x

C-x-o - o-x

Dioo x x

Oh, oh, oh, oh.

Because AB is tied for first place, D is at least third.

Look at the watch

such as

- A-B-C-D-E

A - x-o-x-x

A won, B D E lost to C.