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LeetCode:Plus One

2024-07-13 02:15:19   227人阅读

Given a non-negative number represented as an array of digits, plus one to the number.

The digits are stored such that the most significant digit is at the head of the list.

 

 1 class Solution{ 2 public: 3     vector<int> plusOne(vector<int> &digits){ 4         int n=digits.size(),i; 5         for(i=n-1;i>=0;i--) 6         { 7             if(digits[i]==9) 8             { 9                 digits[i]=0;10                 if(i==0)11                 {12                     vector<int> temp(digits);13                     digits.clear();14                     digits.push_back(1);15                     for(int j=0;j<n;j++)16                     {17                         digits.push_back(temp[j]);18                     }19                     break;20                 }21             }22             else23             {24                 digits[i]++;25                 break;26             }27         }28         return digits;29     }30 };


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