Submission #992758

#	Time	Username	Problem	Language	Result	Execution time	Memory
992758		Programmer123	Magic Show (APIO24_show)	C++17	100 / 100	3 ms	1324 KiB

Alice

#include <bits/stdc++.h>
#include "Alice.h"

std::vector<std::pair<int, int>> Alice() {
    long long x = setN(5000);
    std::vector<std::pair<int, int>> result;
    for (int i = 2; i <= 5000; ++i) {
        result.emplace_back(i, (x % (i - 1)) + 1);
    }
    return result;
}

Bob

#include <bits/stdc++.h>
#include "Bob.h"

long long gcd(long long a, long long b) {
    if (b == 0) return a;
    return gcd(b, a % b);
}

long long Bob(std::vector<std::pair<int, int>> V) {
    long long base = std::max(V[0].first, V[0].second) - 1;
    long long res = std::min(V[0].first, V[0].second) - 1;
    for (auto [b, e]: V) {
        if (b < e) std::swap(b, e);
        b--;
        e--;
        if (gcd(b, base) == 1) {
            for (long long i = 0;; ++i) {
                if ((base * i + res) % b == e) {
                    long long nb = base * b;
                    long long nr = (base * i + res) % nb;
                    std::tie(base, res) = {nb, nr};
                    if (base >= 1000000000000000001ll) return res;
                    break;
                }
            }
        }
    }
    return res;
}

• Subtask 1: 5 / 5
• Subtask 2: 30 / 30
• Subtask 3: 65 / 65