1422.Maximum Score After Splitting a String.cpp

/*
    written by Pankaj Kumar.
    country:-INDIA
*/
typedef long long ll;
const ll INF = 1e18;
const ll mod1 = 1e9 + 7;
const ll mod2 = 998244353;
// Add main code here

class Solution
{
public:
    int maxScore(string s)
    {
        int sum = 0, zero = 0, ans = 0;
        for (auto x : s)
        {
            sum += (x - '0');
        }
        for (int i = 0; i < s.size() - 1; i++)
        {
            zero += (s[i] == '0');
            sum -= (s[i] - '0');
            ans = max(sum + zero, ans);
        }
        return ans;
    }
};