Submission #472237

#	Time	Username	Problem	Language	Result	Execution time	Memory
472237		_L__	Zamjena (COCI18_zamjena)	C++17	56 / 70	150 ms	18428 KiB

zamjena

// This code is written by _L__
#include <bits/stdc++.h>
using namespace std;
#define endl '\n'
#define F_word ios_base::sync_with_stdio(false), cin.tie(NULL), cout.tie(NULL);
typedef long long ll;
typedef long double ld;
const ll mod = 1e9+7, N = 1e5+300, INF = 1e18;
const ld E = 1e-6;
bool an_int(string s){
    return (s[0] >= '1' && s[0] <= '9');
}
bool a_word(string s){
    return (s[0] >= 'a' && s[0] <= 'z');
}

vector<int> G[N+4];bool vis[N+3];int n; set<int> st;
vector<string> v(N+3), x(N+5);
void dfs(int node){
    if(vis[node]) return;
    vis[node] = 1;
    if(node>n && an_int(x[node-n])){
        ll c = 0;
        for(auto b: x[node-n]){c*=10;c+=(b-'0');}
        st.insert(c);
    } else if(an_int(v[node])){
        ll c = 0;
        for(auto b: v[node]){c*=10;c+=(b-'0');}
        st.insert(c);
    }
    for(auto i: G[node]){
        if(!vis[i]) dfs(i);
    }
}

int main(void){
    F_word;
    cin >> n;
    map<string, vector<int>> mp;
    for(int i = 1; i <= n; ++i){
        cin >> v[i]; mp[v[i]].push_back(i);
    }
    for(int i = 1; i <= n; ++i){
        cin >> x[i]; mp[x[i]].push_back(n+i);
    }
    for(int i = 1; i <= n; ++i){
        G[i].push_back(n+i);
        if(an_int(v[i])) continue;
        for(auto c: mp[v[i]]){
            if(c == i) continue;
            G[i].push_back(c);
        }
    }
    for(int i = 1; i <= n; ++i){
        G[n+i].push_back(i);
        if(an_int(x[i])) continue;
        for(auto c: mp[x[i]]){
            if(c == n+i) continue;
            G[n+i].push_back(c);
        }
    }
    bool y = 1;
    for(int i = 1; i <= 2*n; ++i){
        if(!(vis[i])){
            st.clear();
            dfs(i);
            if(st.size() >= 2){y=0;break;}
        }
    }
    cout << (y? "DA\n": "NE\n");
}

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