제출 #1258124

#제출 시각아이디문제언어결과실행 시간메모리
1258124alexdd선물 (IOI25_souvenirs)C++20
4 / 100
0 ms412 KiB
#include "souvenirs.h" #include <utility> #include <bits/stdc++.h> using namespace std; typedef long long ll; int fr[105],val[105]; void buy_souvenirs(int n, long long p0) { for(int pas=n-1;pas>1;pas--) { int cur = p0, cate = pas; val[pas] = -1; while(cate > 1) { pair<vector<int>, ll> aux = transaction(cur/cate); ll sum = cur/cate - aux.second; cate = 0; for(int x:aux.first) { fr[x]++; if(x <= pas) { cate++; } else { sum -= val[x]; } } assert(sum <= cur); cur = sum; } assert(cate==1); val[pas] = cur; } pair<vector<int>, ll> aux = transaction(p0 - 1); val[1] = (p0 - 1) - aux.second; for(int x:aux.first) { fr[x]++; if(x > 1) val[1] -= val[x]; } for(int i=1;i<n;i++) { assert(fr[i] <= i); while(fr[i] < i) { transaction(val[i]); fr[i]++; } } } /* 3 4 3 2 */
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