ContainerWithMostWater.cpp

class Solution {
public:
    int maxArea(vector<int>& height) {
        int a = 0;
        int r = height.size()-1;
        int l=0;
        while(l<r) {
            a = a>(r-l)*(height[r]>height[l]? height[l]:height[r])?a:(r-l)*(height[r]>height[l]? height[l]:height[r]);
            height[r]>height[l] ? l++ : r--;
        }
        return a;
    }
};

void trimLeftTrailingSpaces(string &input) {
    input.erase(input.begin(), find_if(input.begin(), input.end(), [](int ch) {
        return !isspace(ch);
    }));
}

void trimRightTrailingSpaces(string &input) {
    input.erase(find_if(input.rbegin(), input.rend(), [](int ch) {
        return !isspace(ch);
    }).base(), input.end());
}

vector<int> stringToIntegerVector(string input) {
    vector<int> output;
    trimLeftTrailingSpaces(input);
    trimRightTrailingSpaces(input);
    input = input.substr(1, input.length() - 2);
    stringstream ss;
    ss.str(input);
    string item;
    char delim = ',';
    while (getline(ss, item, delim)) {
        output.push_back(stoi(item));
    }
    return output;
}

int main() {
    string line;
    while (getline(cin, line)) {
        vector<int> height = stringToIntegerVector(line);
        
        int ret = Solution().maxArea(height);

        string out = to_string(ret);
        cout << out << endl;
    }
    return 0;
}