#include <bits/stdc++.h>
using namespace std;
inline int signum(int x) {
return (x < 0 ? -1 : (x > 0 ? 1 : 0));
}
const int inf = (int) 1e9;
const int N = 500010;
pair <int, int> a[N];
int pos[N];
pair <int, int> mn[4 * N];
int add[4 * N];
void push(int x) {
add[x + x] += add[x];
mn[x + x].first += add[x];
add[x + x + 1] += add[x];
mn[x + x + 1].first += add[x];
add[x] = 0;
}
void pull(int x) {
mn[x] = min(mn[x + x], mn[x + x + 1]);
}
void build(int x, int l, int r) {
add[x] = 0;
if (l == r) {
mn[x] = make_pair(a[l].first, l);
return;
}
int y = (l + r) >> 1;
build(x + x, l, y);
build(x + x + 1, y + 1, r);
pull(x);
}
void modify(int x, int l, int r, int ll, int rr, int v) {
if (ll <= l && r <= rr) {
add[x] -= v;
mn[x].first -= v;
return;
}
push(x);
int y = (l + r) >> 1;
if (ll <= y) {
modify(x + x, l, y, ll, rr, v);
}
if (rr > y) {
modify(x + x + 1, y + 1, r, ll, rr, v);
}
pull(x);
}
pair <int, int> find_min(int x, int l, int r, int ll, int rr) {
if (ll <= l && r <= rr) {
return mn[x];
}
push(x);
int y = (l + r) >> 1;
pair <int, int> res = make_pair(inf, -1);
if (ll <= y) {
res = min(res, find_min(x + x, l, y, ll, rr));
}
if (rr > y) {
res = min(res, find_min(x + x + 1, y + 1, r, ll, rr));
}
pull(x);
return res;
}
int main() {
int n;
scanf("%d", &n);
for (int i = 0; i < n; i++) {
scanf("%d", &a[i].first);
a[i].second = i;
}
sort(a, a + n);
for (int i = 0; i < n; i++) {
pos[a[i].second] = i;
}
build(1, 0, n - 1);
set <int> minus, zero, plus;
for (int id = 0; id < n; id++) {
int i = pos[id];
auto p = find_min(1, 0, n - 1, i, i);
int vote = signum(p.first);
if (vote == 0) {
zero.insert(i);
} else {
if (vote == -1) {
minus.insert(i);
modify(1, 0, n - 1, i, n - 1, -1);
int last_minus = *(--minus.end());
if (a[last_minus].first == 1 - (int) minus.size()) {
minus.erase(last_minus);
modify(1, 0, n - 1, last_minus, n - 1, 1);
zero.insert(last_minus);
} else {
if (!zero.empty()) {
int first_zero = *(zero.begin());
zero.erase(first_zero);
plus.insert(first_zero);
modify(1, 0, n - 1, first_zero, n - 1, 1);
}
}
} else {
plus.insert(i);
modify(1, 0, n - 1, i, n - 1, 1);
auto q = find_min(1, 0, n - 1, i, n - 1);
if (q.first == -1) {
int pos = q.second;
plus.erase(pos);
modify(1, 0, n - 1, pos, n - 1, -1);
zero.insert(pos);
}
}
}
printf("%d\n", (int) plus.size() - (int) minus.size());
}
return 0;
}