Submission #555615

#	Time	Username	Problem	Language	Result	Execution time	Memory
555615		Fidan	Nekameleoni (COCI15_nekameleoni)	C++17	0 / 140	3091 ms	314476 KiB

nekameleoni

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const ll MAXN=400010;
const ll inf=(1e18);
map<pair<ll, ll>, ll> mp;
int main(){
	
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	
	ll n, k, m, i, j;
	cin>>n>>k>>m;
	vector<ll> v(n+1, k+10);
	for(ll i=1; i<=n; i++){ 
		cin>>v[i];
	}
	for(i=1; i<=k; i++){
		for(j=1; j<=n; j++){
			if(i==v[j]){
				mp[{i, j}]=mp[{i, j-1}]+1;
			}
			else {
				mp[{i, j}]=mp[{i, j-1}];
			}
		}
	}
	while(m--){
		ll test;
		cin>>test;
		if(test==1){
			ll p, val;
			cin>>p>>val;
			for(i=p; i<=n; i++){
				mp[{v[p], i}]--;
			}
			v[p]=val;
			for(i=p; i<=n; i++){
				mp[{v[p], i}]++;
			}
		}
		else {
			ll l=0, r=k, cavab=n+100;
			while(r<=n){
				bool f=true;
				if(r-l<k){
					r++;
					continue;
				}
				for(ll i=1; i<=k; i++){
					if(mp[{i, r}]-mp[{i, l}]==0){
						f=false;
					}
				}
				if(f){
					cavab=min(cavab, r-l);
					l++;
				}
				else {
					r++;
				}
			}
			if(cavab==n+100){
				cout<<-1<<endl;
			}
			else {
				cout<<cavab<<endl;
			}
		}
	}
	return 0;
}

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