Leetcode-915 Partition Array into Disjoint Intervals(分割数组)
1 class Solution 2 { 3 public: 4 int partitionDisjoint(vector<int>& A) 5 { 6 if(A.size()==2&&A[0]<=A[1]) 7 return 1; 8 vector<int> B(A.size(),0); 9 10 int Min = 10000000; 11 for(int i = A.size()-1;i >= 0;i --) 12 { 13 if(A[i]<Min) 14 { 15 B[i] = A[i]; 16 Min = A[i]; 17 } 18 else 19 B[i] = Min; 20 } 21 22 // for(auto d:B) 23 // cout << d << " "; 24 // cout << endl; 25 int result = 0; 26 int Max = A[0]; 27 for(int i = 0;i < A.size();i ++) 28 { 29 if(Max <= B[i]) 30 { 31 result = i; 32 break; 33 } 34 if(A[i]>Max) 35 { 36 Max = A[i]; 37 } 38 } 39 if(result==0) 40 result = 1; 41 return result; 42 } 43 };