有没有大佬解释下：入队条件为什么用上次(i-w-1)的dp加上上次持有的股票个数乘上这次(i)能操作的个数上限

while(l<=r&&dp[i-w-1][q[r]]+q[r]*ap[i]<=dp[i-w-1][j]+j*ap[i])
 
while(l<=r&&dp[i-w-1][q[r]]+q[r]*bp[i]<=dp[i-w-1][j]+j*bp[i])