Submission #561732

#	Time	Username	Problem	Language	Result	Execution time	Memory
561732		Yazan_Alattar	Zamjena (COCI18_zamjena)	C++14	28 / 70	14 ms	1020 KiB

zamjena

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
#define F first
#define S second
#define pb push_back
#define endl "\n"
#define all(x) x.begin(), x.end()
const int M = 300007;
const ll inf = 1e9;
const ll mod = 1e9 + 7;
const double pi = acos(-1);
const double eps = 1e-6;
const int dx[] = {0, -1, 0, 1}, dy[] = {1, 0, -1, 0};
const int block = 320;

map <string,int> mp;
int n, a[M], b[M], p[M], sz[M], tot = 1000;

int root(int x){
    while(x != p[x]){
        p[x] = p[p[x]];
        x = p[x];
    }
    return x;
}

void connect(int x, int y){
    x = root(x); y = root(y);
    if(x == y) return;
    p[x] = y;
    sz[y] += sz[x];
    return;
}

string trans(int x){
    if(x == 0) return "0";


    string ret = "";
    while(x){
        ret += char('0' + (x % 10));
        x /= 10;
    }
    reverse(all(ret));
    return ret;
}

int main(){
    ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    cin >> n;
    for(int i = 0; i < 1000; ++i) mp[trans(i)] = i + 1, sz[i] = 1;
    for(int i = 1; i <= n; ++i){
        string s; cin >> s;

        assert(s[0] != '0');

        if(!mp[s]) mp[s] = ++tot;
        a[i] = mp[s];
    }
    for(int i = 1; i <= n; ++i){
        string s; cin >> s;
        assert(s[0] != '0');

        if(!mp[s]) mp[s] = ++tot;
        b[i] = mp[s];
    }

    for(int i = 1; i <= tot; ++i) p[i] = i;
    for(int i = 1; i <= n; ++i) connect(a[i], b[i]);

    for(int i = 1; i < 1000; ++i)
        for(int j = i + 1; j < 1000; ++j)
            if(root(i) == root(j)) cout << "NE\n", exit(0);

    cout << "DA\n";
    return 0;
}

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