Expression Parsing
Problem - E - Codeforces題意: 給一個由 '+', '*', '0' ~ '9' 組成的合法數式,要求在任意合法的位置插入一對括弧,求最大可能結果。資料規模: The first line contains expression s (1 ≤ |s| ≤ 5001, |s| is odd), its odd positions only contain digi…
Problem - E - Codeforces題意: 給一個由 '+', '*', '0' ~ '9' 組成的合法數式,要求在任意合法的位置插入一對括弧,求最大可能結果。資料規模: The first line contains expression s (1 ≤ |s| ≤ 5001, |s| is odd), its odd positions only contain digi…