L3_A
1.Cut off box problem
2.Treasure box problem
L3_B
1.Take three distinct numbers from 1~300 such that their
sum is divisible by 3
sum is divisible by 3
2.x＋y＋z=10, x,y,z≧0, x,y,z are integers. How many
solution is it?
solution is it?
