归并排序

class Solution {
public:
    void merge(int A[], int m, int B[], int n) {

        int temp_result[m+n];

        int current_inadex = 0;
        int i = 0;
        int j = 0;
        while(i< m&&j<n){
            if(A[i] < B[j]){
                temp_result[current_inadex++] = A[i++];
            }else{
                temp_result[current_inadex++] = B[j++];
            }
        }

        for(;i<m;){
            temp_result[current_inadex ++ ] = A[i++];
        }

         for(;j<n;){
            temp_result[current_inadex ++ ] = B[j++];
        }

        for(int i = 0; i< m+n;i++){
            A[i] = temp_result[i];
        }

    }
};