結果
| 問題 | No.183 たのしい排他的論理和(EASY) |
| コンテスト | |
| ユーザー |
not_522
|
| 提出日時 | 2015-08-03 23:38:52 |
| 言語 | C++11(廃止可能性あり) (gcc 13.3.0) |
| 結果 |
AC
|
| 実行時間 | 461 ms / 5,000 ms |
| コード長 | 1,785 bytes |
| コンパイル時間 | 2,035 ms |
| コンパイル使用メモリ | 163,800 KB |
| 実行使用メモリ | 6,944 KB |
| 最終ジャッジ日時 | 2024-06-29 02:35:35 |
| 合計ジャッジ時間 | 5,394 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge1 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 2 |
| other | AC * 18 |
ソースコード
#include <bits/stdc++.h>
using namespace std;
template<typename Weight, typename Value> Value knapsack(Weight maxWeight, const vector<Weight>& weight, const vector<Value>& value) {
vector<Value> dp1(maxWeight + Weight(1)), dp2(maxWeight + Weight(1));
for (size_t i = 0; i < weight.size(); ++i) {
for (int w = 0; w <= maxWeight; ++w) {
Weight ww = Weight(w) + weight[i];
Value vv = dp1[w] + value[i];
if (ww <= maxWeight && dp2[ww] < vv) dp2[ww] = vv;
}
dp1 = dp2;
}
return dp1[maxWeight];
}
template<typename Weight, typename Value = long long> vector<Value> knapsack_counter(Weight maxWeight, const vector<Weight>& weight) {
vector<Value> dp1(maxWeight + Weight(1)), dp2(maxWeight + Weight(1));
dp1[0] = dp2[0] = 1;
for (auto& w : weight) {
for (int i = 0; i <= maxWeight; ++i) {
Weight ww = Weight(i) + w;
if (ww <= maxWeight) dp2[ww] += dp1[i];
}
dp1 = dp2;
}
return dp1;
}
template<typename Weight> vector<bool> knapsack_fill(Weight maxWeight, const vector<Weight>& weight) {
vector<bool> dp1(maxWeight + Weight(1)), dp2(maxWeight + Weight(1));
dp1[0] = dp2[0] = true;
for (auto& w : weight) {
for (int i = 0; i <= maxWeight; ++i) {
Weight ww = Weight(i) + w;
if (ww <= maxWeight && dp1[i]) dp2[ww] = true;
}
dp1 = dp2;
}
return dp1;
}
struct Weight {
int val;
Weight() {}
Weight(int val) : val(val) {}
Weight operator+(const Weight& weight) const {
return Weight(val ^ weight.val);
}
operator int() const {
return val;
}
};
int main() {
int n;
cin >> n;
vector<Weight> a(n);
for (auto& i : a) {
int w;
cin >> w;
i = w;
}
auto v = knapsack_fill(Weight(1 << 15), a);
cout << count(v.begin(), v.end(), true) << endl;
}
not_522