[Level 2] 다리를 지나는 트럭

def solution(bridge_length, weight, truck_weights):
    answer = 0
    trucks_on_bridge = [0] * bridge_length
    while trucks_on_bridge:
        answer += 1
        trucks_on_bridge.pop(0)
        if truck_weights:
            if sum(trucks_on_bridge) + truck_weights[0] <= weight:
                trucks_on_bridge.append(truck_weights.pop(0))
            else:
                trucks_on_bridge.append(0)
    return answer