MathDB
18th ibmo - argentina 2003/q1

Source: Spanish Communities

April 8, 2006
algebra unsolvedalgebra

Problem Statement

(a)(a)There are two sequences of numbers, with 20032003 consecutive integers each, and a table of 22 rows and 20032003 columns            \begin{array}{|c|c|c|c|c|c|} \hline\ \ &\ &\ &\cdots\cdots&\ &\ \\ \hline \ &\ &\ &\cdots\cdots&\ &\ \\ \hline \end{array} Is it always possible to arrange the numbers in the first sequence in the first row and the second sequence in the second row, such that the sequence obtained of the 20032003 column-wise sums form a new sequence of 20032003 consecutive integers? (b)(b) What if 20032003 is replaced with 20042004?