POJ 1141 subject source code + source code To give you a sequence of brackets that will give you a minimum of the sequence black book that allows the parentheses to be valid Thought: dp[a][b] represents the minimum number of filling sequences required for a b A = = b when dp a> [a] [b] = 1; B when dp [a] [b] = 0 S [a] is paired with s[b] [b]=dp[a+1][b-1] Otherwise the dp [a] [b] = min (dp [a] [k], dp [k + 1] [b]) a< = k< b The record path takes the general DP record path

poj1141.txt

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