692脑筋急转弯中等derivationmedium
Subset Size and Residue Collision 7
题目
Among any 36 distinct subsets of {1,2,3,4,5,6}, show that two subsets must have the same size and the same sum of elements modulo 5.
解题计时
0:00
提交作答时记录，用于后续平均用时统计。
题目
Among any 36 distinct subsets of {1,2,3,4,5,6}, show that two subsets must have the same size and the same sum of elements modulo 5.
解题计时
0:00
提交作答时记录，用于后续平均用时统计。