You are given a sequence A of N (N <= 50000) integers between -10000 and 10000. On this sequence you have to apply M (M <= 50000) operations:
\nmodify the i-th element in the sequence or for given x y print max{Ai + Ai+1 + .. + Aj | x<=i<=j<=y }.\n

Input

\n

The first line of input contains an integer N. The following line contains N integers, representing the sequence A1..AN.
\nThe third line contains an integer M. The next M lines contain the operations in following form:
\n0 x y: modify Ax into y (|y|<=10000).
\n1 x y: print max{Ai + Ai+1 + .. + Aj | x<=i<=j<=y }.
\n

Output

\n

For each query, print an integer as the problem required.\n

Example

\n\n

Input:\n4\n1 2 3 4\n4\n1 1 3\n0 3 -3\n1 2 4\n1 3 3\n\nOutput:\n6\n4\n-3\n

统计

递交统计

Can you answer these queries III

信息

状态

开发

支持

还没有账户？

登录