Difference between revisions of "2021 WSMO Team Round/Problem 11"

(Created page with "==Problem== Find the remainder when<cmath>\sum_{x+y+z\leq10}\frac{(x+y+z)!}{x!y!z!}</cmath>is divided by <math>100</math>. (<math>x,y,z\geq 0</math>) ==Solution")
 
 
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Find the remainder when<cmath>\sum_{x+y+z\leq10}\frac{(x+y+z)!}{x!y!z!}</cmath>is divided by <math>100</math>. (<math>x,y,z\geq 0</math>)
 
Find the remainder when<cmath>\sum_{x+y+z\leq10}\frac{(x+y+z)!}{x!y!z!}</cmath>is divided by <math>100</math>. (<math>x,y,z\geq 0</math>)
  
==Solution
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==Solution==

Latest revision as of 13:01, 14 December 2023

Problem

Find the remainder when\[\sum_{x+y+z\leq10}\frac{(x+y+z)!}{x!y!z!}\]is divided by $100$. ($x,y,z\geq 0$)

Solution