class Solution { public: int nixu(vector<int> &nums,vector<int>& tmp,int l,int r,int &cnt_nixu){ int mod = 1000000007; if(l >= r) return 0; int mid = (l + r)/2; int s1 = l,e1 = mid; int s2 = mid+1,e2 = r; nixu(nums,tmp,l,mid,cnt_nixu); nixu(nums,tmp,mid+1,r,cnt_nixu); int ...