The string"PAYPALISHIRING"is written in a zigzag pattern on a given number of rows like this: (you m

The string"PAYPALISHIRING"is written in a zigzag pattern on a given number of rows like this: (you may want to display this pattern in a fixed font for better legibility) P A H N A P L S I I G Y I R And then read line by line:"PAHNAPLSIIGYIR" Write the code that will take a string and make this conversion given a number of rows: string convert(string text, int nRows); convert("PAYPALISHIRING", 3)should return"PAHNAPLSIIGYIR".

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//题目还是小伙伴解释才看懂。。。输入的数组digits表示一个大整数，每个表示一位。 class Solution { public: vector plusOne(vector &digits) { const int num = 1; //待加数 int carry = num; //进位 for (int i = digits.size() - 1; i >= 0; i--) { digits[i] += carry; carry = digits[i] / 10; digits[i] %= 10; } if (carry > 0) digits.insert(digits.begin(),1); return digits; } };

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