leetcode

Solution to some Leetcode problems written in C++
git clone git://git.dimitrijedobrota.com/leetcode.git
Log | Files | Refs | README | LICENSE

0011.cpp (474B)


      1 class Solution {
      2   public:
      3     int trap(vector<int> &height) {
      4         int ans = 0, n = height.size(), maxi, m1, m2;
      5         vector<int> mleft(n), mright(n);
      6 
      7         m1 = m2 = INT_MIN;
      8         for (int i = 0; i < n; i++) {
      9             mleft[i] = m1 = max(m1, height[i]);
     10             mright[n - i - 1] = m2 = max(m2, height[n - i - 1]);
     11         }
     12 
     13         for (int i = 1; i < n - 1; i++)
     14             ans += min(mleft[i], mright[i]) - height[i];
     15         return ans;
     16     }
     17 };