func_code_string: #include <bits/stdc++.h>   const double PI = acos(-1.0);   using namespace std;   const int MAXN = 500117;   int n, a[MAXN], ans;   int main() {     scanf( %d , &n);     for (int i = 0; i < n; scanf( %d , &a[i++]))       ;     int j = 0, cur = 0;     for (int i = 1; i < n - 1; i++) {       if (a[i] != a[i - 1] && a[i] != a[i + 1]) {         if (cur == 0) j = i;         cur++;       } else if (cur > 0) {         ans = max(ans, (cur + 1) / 2);         for (int k = j, t = i - 1; k <= t;              a[k] = a[k - 1], a[t] = a[t + 1], k++, t--)           ;         cur = 0;       }     }     if (cur > 0) {       ans = max(ans, (cur + 1) / 2);       for (int k = j, t = n - 2; k <= t;            a[k] = a[k - 1], a[t] = a[t + 1], k++, t--)         ;     }     printf( %d n , ans);     for (int i = 0; i < n; printf( %d  , a[i++]))       ;     putchar(  n );     return 0;   }   