502. IPO

手擼成功，考慮到排序的話，可以多考慮考慮heap。

class Solution(object):
    def findMaximizedCapital(self, k, W, Profits, Capital):
        """
        :type k: int
        :type W: int
        :type Profits: List[int]
        :type Capital: List[int]
        :rtype: int
        """
        
        # init - add all project of capital v less than W into heap
        capital_heap = []
        for i in range(len(Profits)):
            heapq.heappush(capital_heap, [Capital[i], Profits[i]])
        
        heap = []
        res = 0
        while k > 0 and (capital_heap or heap):
            
            while capital_heap and capital_heap[0][0] <= W:
                c, p= heapq.heappop(capital_heap)
                heapq.heappush(heap, [-p, c])
            
            if not heap:
                break
            val, cost = heapq.heappop(heap)
            val = -val
            W = W + val
            k -= 1
        
        return W