Problem
COM-B1-M06-P009 Operation \(a+1,b-1\)
#9
★★☆☆☆ Level 2 of 5
For a pair \((a,b)\), the move \((a,b) o(a+1,b-1)\) is allowed. Can \((10,5)\) be obtained from \((3,8)\)?
The sum \(a+b\) is preserved.
The initial sum is \(11\), the target sum is \(15\). The operation preserves the sum, so it is impossible.
Classic transfer of one unit.