Submission #61822542

Source Code Expand

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def main():
    Q = int(input())
    queue = []
    idx = 0
    for _ in range(Q):
        q = list(map(int, input().split()))
        if q[0] == 1:
            l = q[1]
            if len(queue) == 0:
                queue.append((l, 0))
            else:
                queue.append((l, sum(queue[-1])))
        elif q[0] == 2:
            idx += 1
        else:
            k = q[1]
            print(queue[idx+k-1][1]-queue[idx][1])
if __name__ == '__main__':
    main()
 
 
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def main():
    Q = int(input())
    queue = []
    idx = 0

    for _ in range(Q):
        q = list(map(int, input().split()))
        if q[0] == 1:
            l = q[1]
            if len(queue) == 0:
                queue.append((l, 0))
            else:
                queue.append((l, sum(queue[-1])))
        elif q[0] == 2:
            idx += 1
        else:
            k = q[1]
            print(queue[idx+k-1][1]-queue[idx][1])

if __name__ == '__main__':
    main()

Submission Info

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