func_code_string: #include <bits/stdc++.h>   using namespace std;   int bit[200050];   int n;   int lowbit(int x) { return x & (-x); }   int sum(int x) {     int sum = 0;     while (x > 0) {       sum += bit[x];       x -= lowbit(x);     }     return sum;   }   void push(int pos, int num) {     while (pos <= n) {       bit[pos] += num;       pos += lowbit(pos);     }   }   int kth(int k) {     int num = 0;     int x = 0;     for (int i = 1 << 18; i > 0; i >>= 1) {       num += i;       if (num >= n || x + bit[num] >= k)         num -= i;       else         x += bit[num];     }     return num + 1;   }   int main() {     scanf( %d , &n);     int a[200050];     int x;     memset((bit), (0), sizeof((bit)));     for (int i = 0; i < n; i++) {       scanf( %d , &x);       push(x + 1, 1);       a[i] = x - sum(x);     }     memset((bit), (0), sizeof((bit)));     for (int i = 0; i < n; i++) {       scanf( %d , &x);       push(x + 1, 1);       a[i] += x - sum(x);     }     for (int i = n - 1; i > 0; i--) {       if (a[i] >= n - i) {         a[i - 1]++;         a[i] -= n - i;       }     }     if (a[0] >= n) a[0] -= n;     for (int i = 0; i < n; i++) {       int num = kth(a[i] + 1);       printf( %d  , num - 1);       push(num, -1);     }     return 0;   }   