제출 #605401

#제출 시각아이디문제언어결과실행 시간메모리
605401HamletPetrosyan비스킷 담기 (IOI20_biscuits)C++17
0 / 100
1102 ms271280 KiB
#include "biscuits.h" #include <map> using namespace std; #define ll long long #define add push_back #define len(a) ((int)(a).size()) map<ll, ll> dp[70]; long long count_tastiness(long long x, vector<long long> a) { dp[0][0] = 1; for(int i = 0; i <= len(a) + 7; i++){ for(const auto& [key, value] : dp[i]){ dp[i + 1][((key + (i >= len(a) ? 0 : a[i])) / 2)] += value; if((i >= len(a) ? 0 : a[i]) + key >= x) dp[i + 1][(key + (i >= len(a) ? 0 : a[i]) - x) / 2] += value; } } ll ret = 0; for(const auto& [key, value] : dp[len(a) + 3]){ ret += value; } return ret; }
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