Submission #1254065

#	Time	Username	Problem	Language	Result	Execution time	Memory
1254065		vpinx	World Map (IOI25_worldmap)	C++20	12 / 100	9 ms	1456 KiB

worldmap

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

vector<vector<int>> solve_subtask2(int n, int m, vector<int> a, vector<int> b) {
    vector<vector<int>> ans(2 * n, vector<int>(2 * n));
    for (int i = 0; i < 2 * n; i++) {
        if (i & 1) {
            for (int j = 0; j < 2 * n; j++) {
                if (j >= i / 2) ans[i][j] = min(j + 2, i / 2 == n - 1 ? i / 2 : n);
                else ans[i][j] = j + 1;
            }
        }else {
            for (int j = 0; j < 2 * n; j++) ans[i][j] = i / 2 + 1;
        }
    }
    return ans;
}

vector<vector<int>> solve_subtask1(int n, int m, vector<int> a, vector<int> b) {
    vector<vector<int>> ans(n, vector<int>(n));
    for (int i = 0; i < n; i++) iota(ans[i].begin(), ans[i].end(), 1);
    return ans;
}

vector<vector<int>> create_map(int n, int m, vector<int> a, vector<int> b) {
    bool subtask1 = true, subtask2 = (m == n * (n - 1) / 2);
    for (int i = 0; i < m; i++) {
        if (a[i] != i + 1 or b[i] != i + 2) subtask1 = false;
    }
    
    if (subtask1) return solve_subtask1(n, m, a, b);
    return solve_subtask2(n, m, a, b);
}

• Subtask 0: 0 / 0
• Subtask 1: 5 / 5
• Subtask 2: 0 / 10
• Subtask 3: 7 / 7
• Subtask 4: 0 / 8
• Subtask 5: 0 / 14
• Subtask 6: 0 / 56