Prove 1001×1001 symmetric table has all numbers on diagonal

WJMeyer · Jul 13, 2020

A square table of size 1001x1001 is filled with the numbers 1; 2; 3; ... ; 1001 in such a way that in every row
and every column all those numbers appear. If the table is symmetric with respect to one of its diagonals,
prove that in this diagonal all of the numbers 1; 2; 3; ... ; 1001 appear.

WJMeyer · Jul 13, 2020

Nevermind I got it:)

Prove 1001×1001 symmetric table has all numbers on diagonal

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Prove 1001×1001 symmetric table has all numbers on diagonal

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