This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include<bits/stdc++.h>
using namespace std;
#define fi first
#define se second
const int N = 1e5 + 7;
using ll = long long;
typedef pair<int, int> ii;
int n, k, Q;
int a[N], cnt[100];
struct query
{
int type, id, x;
}q[N];
namespace sub1
{
void solve()
{
for(int i = 1; i <= Q; i++)
{
if(q[i].type == 1) a[q[i].id] = q[i].x;
else
{
for(int x = 1; x <= k; x ++) cnt[x] = 0;
int i1 = 1;
int t = 0;
int ans = 1e9 + 7;
for(int j = 1; j <= n; j++)
{
if(j > 1)
{
cnt[a[j - 1]] --;
if(cnt[a[j - 1]] == 0) t --;
}
while(t < k && i1 <= n)
{
if(!cnt[a[i1]]) t ++;
cnt[a[i1]] ++;
i1 ++;
}
if(t == k) ans = min(ans, i1 - j);
}
if(ans == 1e9 + 7) cout << -1 << "\n";
else cout << ans << "\n";
}
}
}
}
int main()
{
ios_base::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
// freopen(".inp","r",stdin);
// freopen(".out","w",stdout);
cin >> n >> k >> Q;
for(int i = 1; i <= n; i++) cin >> a[i];
for(int i = 1; i <= Q; i++)
{
cin >> q[i].type;
if(q[i].type == 1) cin >> q[i].id >> q[i].x;
}
if(n <= 5000 && Q <= 5000) sub1 :: solve();
}
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