#include <bits/stdc++.h>
namespace chtholly {
inline int read() {
  int x = 0, f = 1;
  char c = getchar();
  for (; !isdigit(c); c = getchar()) f ^= c == '-';
  for (; isdigit(c); c = getchar()) x = (x << 3) + (x << 1) + (c ^ '0');
  return f ? x : -x;
}
template <typename mitsuha>
inline bool read(mitsuha &x) {
  x = 0;
  int f = 1;
  char c = getchar();
  for (; !isdigit(c) && ~c; c = getchar()) f ^= c == '-';
  if (!~c) return 0;
  for (; isdigit(c); c = getchar()) x = (x << 3) + (x << 1) + (c ^ '0');
  return x = f ? x : -x, 1;
}
template <typename mitsuha>
inline int write(mitsuha x) {
  if (!x) return 0 & putchar(48);
  if (x < 0) x = -x, putchar('-');
  int bit[20], i, p = 0;
  for (; x; x /= 10) bit[++p] = x % 10;
  for (i = p; i; --i) putchar(bit[i] + 48);
  return 0;
}
inline char fuhao() {
  char c = getchar();
  for (; isspace(c); c = getchar())
    ;
  return c;
}
}  // namespace chtholly
using namespace chtholly;
using namespace std;
const int yuzu = 5e5;
int a[yuzu | 10];
int main() {
  int i, n = read();
  for (i = 1; i <= n; ++i) a[i] = read();
  int la = 1, ans = 0, l, r;
  for (i = 2; i <= n + 1; ++i) {
    if (a[i] == a[i - 1] || i == n + 1) {
      ans = max(ans, (i - 1 - la) >> 1);
      for (r = i - 2, l = la + 1; l <= r; a[l++] = a[la], a[r--] = a[i - 1])
        ;
      la = i;
    }
  }
  cout << ans << endl;
  for (i = 1; i <= n; ++i) write(a[i]), putchar(' ');
}
