Submission #561759

#	Time	Username	Problem	Language	Result	Execution time	Memory
561759		Yazan_Alattar	Zamjena (COCI18_zamjena)	C++14	56 / 70	1092 ms	7884 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 = 100007;
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;
string s1[M], s2[M];
int n, sz[M], p[M], a[M], b[M], tot;

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;
    if(sz[x] > sz[y]) swap(x, y);
    p[x] = y;
    sz[y] += sz[x];
    return;
}

bool is(string s) { return (s[0] >= '0' && s[0] <= '9'); }

int main(){
    ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    cin >> n;
    for(int i = 1; i <= n; ++i){
        cin >> s1[i];
        if(!mp[s1[i]]) mp[s1[i]] = ++tot;
        a[i] = mp[s1[i]];
        s1[i] = s1[i][0];

        p[a[i]] = a[i];
        sz[a[i]] = 1;
    }
    for(int i = 1; i <= n; ++i){
        cin >> s2[i];
        if(!mp[s2[i]]) mp[s2[i]] = ++tot;
        b[i] = mp[s2[i]];
        s2[i] = s2[i][0];

        p[b[i]] = b[i];
        sz[b[i]] = 1;
    }

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

    for(int i = 1; i <= n; ++i){
        for(int j = 1; j <= n; ++j){
            if(is(s1[i]) && is(s2[j]) && a[i] != b[j] && root(a[i]) == root(b[j])) cout << "NE\n", exit(0);
            if(is(s1[i]) && is(s1[j]) && a[i] != a[j] && root(a[i]) == root(a[j])) cout << "NE\n", exit(0);
            if(is(s2[i]) && is(s2[j]) && b[i] != b[j] && root(b[i]) == root(b[j])) cout << "NE\n", exit(0);
        }
    }

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

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