My final post for 小坏蛋.
Suppose you are the only one who bets a game. You bet A to win with 100 pts. No body else bets.
You are lucky. A finally wins the game. What do you expect to get? 100 (your bet) + 100 (your return) or 100 (your bet) + 0?
按照俺60楼的推断,P1 = (m-m) + (N/x-n) = N/x - n
这里m=100,n=0,M=100,N=0,x=1
P1=0 即 净赚为0,符合题目啊。
某非按照你的算法还能算出净赚为正?