Cleanest C++ code until now, in 5 lines


  • 9
    S
    string convert(string s, int numRows) {
            if(numRows==1) return s;
            vector<string> p(numRows,"");
            int size=2*numRows-2;
            for(int i=0;i<s.size();i++) p[abs(numRows-1-i%size)]+=s[i];
            return accumulate( p.rbegin(), p.rend(), string("") );
        }

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