Submission #235897

#	Time	Username	Problem	Language	Result	Execution time	Memory
235897		Bilyana	Game (IOI14_game)	C++17	42 / 100	1055 ms	2584 KiB

game

#include <bits/stdc++.h>
#pragma GCC optimize ("O3")
#pragma GCC target ("sse4")
#pragma GCC optimize ("unroll-loops")
#pragma GCC target ("avx2")

using namespace std;

vector<bool> used;
vector<vector<int>> con;

void initialize(int n) {
    con.resize(n);
    used.resize(n, 0);
    for (int i=0; i<n; i++) {
        for (int j=0; j<n; j++) {
            if (j == i) {
                continue;
            }
            con[i].push_back(j);
        }
    }
}

bool dfs(int curr, int par, int en) {
    if (curr == en) {
        return 1;
    }
    used[curr] = 1;
    for (auto to : con[curr]) {
        if (to != par && !used[to]) {
            if (dfs(to, curr, en)) {
                return 1;
            }
        }
    }
    return 0;
}

void removeEdge(int u, int v) {
    for (int i=0; i<(int)con[u].size(); i++) {
        if (con[u][i] == v) {
            swap(con[u][i], con[u].back());
            con[u].pop_back();
        }
    }
}

int hasEdge(int u, int v) {
    fill(used.begin(), used.end(), 0);
    if (dfs(u, v, v)) {
        removeEdge(u, v);
        removeEdge(v, u);
        return 0;
    }
    return 1;
}

• Subtask 1: 15 / 15
• Subtask 2: 27 / 27
• Subtask 3: 0 / 58