Submission #643141

#	Time	Username	Problem	Language	Result	Execution time	Memory
643141		SlavicG	Colors (RMI18_colors)	C++17	47 / 100	3079 ms	42312 KiB

colors

#include "bits/stdc++.h"
using namespace std;

#define ll long long
#define sz(a) (int)a.size()
#define all(a) a.begin(),a.end()
#define rall(a) a.rbegin(),a.rend()
#define pb push_back
#define forn(i, n) for(int i = 0; i < n; ++i)

const int N = 1e5 + 10;
vector<int> adj[N];
int a[N], b[N];
void solve() {
    int n, m; cin >> n >> m;
    forn(i, n) adj[i].clear();
    for(int i = 0; i < n; ++i) cin >> a[i];
    for(int i = 0; i < n; ++i) cin >> b[i];
    for(int i = 0; i < m; ++i) {
        int u, v; cin >> u >> v; --u, --v;
        adj[u].pb(v);
        adj[v].pb(u);
    }
    vector<int> nodes[n + 1];
    for(int i = 0; i < n; ++i) nodes[a[i]].pb(i);
    int j = n;
    while(true) {
        int u = -1;
        while(j > 0 && !sz(nodes[j])) --j;
        if(j >= 0 && sz(nodes[j])) {
            u = nodes[j].back();
            nodes[j].pop_back();
        }
        if(u == -1) break;
        for(int v: adj[u]) {
            if(a[v] != b[v] && a[v] > a[u]) {
                a[v] = a[u];
                nodes[a[v]].pb(v);
            }
        }
    }
    forn(i, n) {
        if(a[i] != b[i]) {
            cout << "0\n";
            return;
        }
    }
    cout << "1\n";
}

int main() {
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    int t; cin >> t;
    while(t--) {
        solve();
    }
}

• Subtask 1: 15 / 15
• Subtask 2: 7 / 7
• Subtask 3: 8 / 8
• Subtask 4: 0 / 15
• Subtask 5: 7 / 7
• Subtask 6: 0 / 16
• Subtask 7: 10 / 10
• Subtask 8: 0 / 22