Submission #1065499

#	Time	Username	Problem	Language	Result	Execution time	Memory
1065499		EkinOnal	Zamjena (COCI18_zamjena)	C++17	28 / 70	492 ms	65536 KiB

zamjena

//#pragma GCC optimize("O3,unroll-loops,Ofast")
//#pragma GCC target("avx2,bmi,bmi2,popcnt,lzcnt")
#include <bits/stdc++.h>
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
//using namespace __gnu_pbds;
 
#define MAX 200007
#define pb push_back
#define mp make_pair 
#define int long long
#define f first
#define s second
#define vi vector<int>
#define pii pair<int,int>
#define si set<int>
#define vpii vector<pair<int,int>> 
const int mod = 1e9+7;
const int INF = 1e18;
// myMap.begin()->first :  key
// myMap.begin()->second : value
 
int epow(int a,int b){int ans=1;while(b){if(b&1) ans*=a;a*=a;;b>>=1;}return ans;}
int gcd(int a,int b) {if(a<b)swap(a,b);while(b){int tmp=b;b=a%b;a=tmp;}return a;}
int mul(int a,int b){return ((a%mod)*(b%mod))%mod;}
int sum(int a,int b){return ((a%mod)+(b%mod))%mod;}
 
//typedef tree<pii,null_type,less<pii>,rb_tree_tag,tree_order_statistics_node_update>ordered_set;
 
void solve(){
	int n; cin>>n;
 
	vector<string> a(n); for(int i=0;i<n;i++) cin>>a[i];
	vector<string> b(n); for(int i=0;i<n;i++) cin>>b[i];
 
	map<string,set<string>> mp;
	map<string,string> bas;
	for(int i=0;i<n;i++){
		if(a[i].size()==1 && a[i][0]<'a' && b[i].size()==1 && b[i][0]<'a' && a[i]!=b[i]){cout<<"NE\n";return;}
		if(a[i]==b[i]) continue;
		else{
			if(bas[a[i]]=="" && bas[b[i]]==""){
				bas[a[i]]=a[i];
				bas[b[i]]=a[i];
				mp[a[i]].insert(b[i]);
				mp[a[i]].insert(a[i]);
			}
			else if(bas[a[i]]!="" && bas[b[i]]!=""){
			//{cout<<"NE\n";return;}
				if(bas[a[i]]==bas[b[i]]) continue;
				if(mp[bas[a[i]]]<mp[bas[b[i]]]) swap(mp[bas[a[i]]],mp[bas[b[i]]]);
				for(auto u : mp[bas[b[i]]]){
					mp[bas[a[i]]].insert(u);
					bas[u]=bas[a[i]];
				}
			//	mp[bas[a[i]]].insert(b[i]);  mp[bas[b[i]]].insert(a[i]);
			}
			else{
				if(bas[a[i]]!=""){
					if(b[i][0]>='a')bas[b[i]]=bas[a[i]];
					mp[bas[a[i]]].insert(b[i]);
				}
				else{
					if(a[i][0]>='a')bas[a[i]]=bas[b[i]];
					mp[bas[b[i]]].insert(a[i]);
				}
			}
		}
	}
 
	for(auto u : mp){
		int curr=0;
		for(auto k : u.s){
			if(k.size()==1 && k[0]<'a') curr++;
		}
		if(curr>1) {cout<<"NE\n";return;}
	}
 
	cout << "DA\n";
 
	return;
}
 
int32_t main() {
//	freopen("hayfeast.in", "r", stdin);
//	freopen("hayfeast.out", "w", stdout);
	ios_base::sync_with_stdio(0);cin.tie(0);   
 
    int t=1;
 //   cin >> t;
    while (t--) solve();
 
    return 0;
}

• Subtask 1: 14 / 14
• Subtask 2: 14 / 14
• Subtask 3: 0 / 14
• Subtask 4: 0 / 14
• Subtask 5: 0 / 14