Submission #855708

#	Time	Username	Problem	Language	Result	Execution time	Memory
855708		vjudge1	Zamjena (COCI18_zamjena)	C++17	70 / 70	175 ms	8272 KiB

zamjena

#pragma GCC optimize("unroll-loops,Ofast,O3")
#include <bits/stdc++.h>
#define pb push_back
#define mp make_pair
#define spc << " " <<
#define endl "\n"
#define all(x) x.begin(), x.end()
#define ll long long
#define int long long
#define ii pair<int,int>
#define vi vector<int>
#define vii vector<ii>
#define st first
#define nd second
#define inf 1000000009
#define MOD 1000000007
#define lim 200005
using namespace std;




map<string, string> dad;
string find(string s){
    if(dad[s]=="" || dad[s]==s) return dad[s]=s;
    return dad[s]=find(dad[s]);
}
void unite(string s, string t){
    dad[find(s)] = find(t);
}



void solve(){
    int n; cin >> n;
    map<string, string> asso;
    string b1[n+1], b2[n+1];
    vector<pair<string, string>> pro; // variba, numba
    for(int i=1; i<=n; i++) cin >> b1[i];
    for(int i=1; i<=n; i++) cin >> b2[i];
    for(int i=1; i<=n; i++){
        string s=b1[i], t=b2[i];
        if((s[0]-'0')>=0 && (s[0]-'0')<=9){ // numba
            if((t[0]-'0')>=0 && (t[0]-'0')<=9){ // numba
                if(s!=t){
                    cout << "NE\n";
                    return;
                }
            }
            else{  // variba
                pro.pb({t,s});
            }
        }
        else{  // variba
            if((t[0]-'0')>=0 && (t[0]-'0')<=9){ // numba
                pro.pb({s,t});
            }
            else{  // variba
                unite(s,t);
            }
        }
    }
    for(auto p:pro){
        if(asso[find(p.st)]==""){
            asso[find(p.st)]=p.nd;
        }
        else{
            if(asso[find(p.st)]!=p.nd){
                cout << "NE\n";
                return;
            }
        }
    }
    cout << "DA" << endl;
}



signed main(){
    ios_base::sync_with_stdio(false);cin.tie(0);
    #ifdef Local
    freopen("in","r",stdin);
    freopen("out","w",stdout);
    #endif

    ll t=1;
    //cin >> t;
    while(t--) solve();
}

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