题目:
题解:
class Solution {
public:vector<string> summaryRanges(vector<int>& nums) {vector<string> ret;int i = 0;int n = nums.size();while (i < n) {int low = i;i++;while (i < n && nums[i] == nums[i - 1] + 1) {i++;}int high = i - 1;string temp = to_string(nums[low]);if (low < high) {temp.append("->");temp.append(to_string(nums[high]));}ret.push_back(move(temp));}return ret;}
};