제출 #1051657

#제출 시각아이디문제언어결과실행 시간메모리
1051657fuad27비스킷 담기 (IOI20_biscuits)C++17
0 / 100
0 ms348 KiB
#include "biscuits.h" #include <bits/stdc++.h> using namespace std; map<pair<int, long long>, long long> mp; long long X; vector<long long> A; int k; long long solve(int i, long long add) { if(i == k)return 1; if(mp.find({i, add}) != mp.end())return mp[{i, add}]; if(add+A[i] >= X) { mp[{i, add}] += solve(i+1, (add+A[i]-X)/2); } mp[{i, add}] += solve(i+1, (add+A[i])/2); return mp[{i, add}]; } long long count_tastiness(long long x, std::vector<long long> a) { mp.clear(); X=x; A=a; k = a.size(); A.push_back(0); for(int i = 0;i<k;i++) { if(A[i] > x) { long long c = A[i]-x; A[i+1] += c/2; c/=2; c*=2; A[i] -= c; } } return solve(0, 0); }
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