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All-Russian Olympiad
1962 All-Soviet Union Olympiad
14
14
Part of
1962 All-Soviet Union Olympiad
Problems
(1)
Two sets with the same sum
Source: 1962 All-Soviet Union Olympiad
1/15/2018
Given are two sets of positive numbers with the same sum. The first set has
m
m
m
numbers and the second
n
n
n
. Prove that you can find a set of less than
m
+
n
m+n
m
+
n
positive numbers which can be arranged to part fill an
m
×
n
m \times n
m
×
n
array, so that the row and column sums are the two given sets.
combinatorics
Russia