제출 #1286317

#제출 시각아이디문제언어결과실행 시간메모리
1286317georgeckito선물 (IOI25_souvenirs)C++20
7 / 100
13 ms400 KiB
#include <bits/stdc++.h> #include "souvenirs.h" using namespace std; void buy_souvenirs(int N, long long P0) { if (N == 2) { std::pair<std::vector<int>, long long> res = transaction(P0 - 1); } else if (N == 3) { std::pair<std::vector<int>, long long> res = transaction(P0 - 1); if (res.first.size() == 1) { int p1 = P0 - 1 - res.second; // a > b > c // b+c+x=a-1 => c = a-1-x-b std::pair<std::vector<int>, long long> res1 = transaction(p1 - 1); transaction(p1 - res1.second - 1); } else { long long x = P0 - 1 - res.second; transaction((x - 1) / 2); } } else { for (int i = 1; i < N; i++) { for (int j = 0; j < i; j++) { transaction(N - i); } } } return; }
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