結果
| 問題 | No.247 線形計画問題もどき |
| コンテスト | |
| ユーザー |
not_522
|
| 提出日時 | 2015-08-19 01:13:09 |
| 言語 | C++11(廃止可能性あり) (gcc 13.3.0 + boost 1.89.0) |
| 結果 |
AC
|
| 実行時間 | 14 ms / 2,000 ms |
| コード長 | 1,600 bytes |
| 記録 | |
| コンパイル時間 | 1,331 ms |
| コンパイル使用メモリ | 161,276 KB |
| 実行使用メモリ | 6,948 KB |
| 最終ジャッジ日時 | 2024-07-07 11:09:32 |
| 合計ジャッジ時間 | 1,824 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 5 |
| other | AC * 23 |
ソースコード
#include <bits/stdc++.h>
using namespace std;
template<typename Weight, typename Value, bool strict = false> Value unboundedKnapsack(Weight maxWeight, const vector<Weight>& weight, const vector<Value>& value) {
constexpr Value IMP = numeric_limits<Value>::min();
vector<Value> dp(maxWeight + Weight(1));
if (strict) fill(dp.begin() + 1, dp.end(), IMP);
for (size_t i = 0; i < weight.size(); ++i) {
for (int w = 0; w <= maxWeight; ++w) {
if (strict && dp[w] == IMP) continue;
Weight ww = Weight(w) + weight[i];
Value vv = dp[w] + value[i];
if (ww <= maxWeight && dp[ww] < vv) dp[ww] = vv;
}
}
return dp[maxWeight];
}
template<typename Weight, typename Value = long long> vector<Value> knapsackCount(Weight maxWeight, const vector<Weight>& weight) {
vector<Value> dp(maxWeight + Weight(1));
dp[0] = 1;
for (auto& w : weight) {
for (int i = 0; i <= maxWeight; ++i) {
Weight ww = Weight(i) + w;
if (ww <= maxWeight) dp[ww] += dp[i];
}
}
return dp;
}
template<typename Weight> vector<bool> unboundedKnapsackFill(Weight maxWeight, const vector<Weight>& weight) {
vector<bool> dp(maxWeight + Weight(1));
dp[0] = true;
for (auto& w : weight) {
for (int i = 0; i <= maxWeight; ++i) {
Weight ww = Weight(i) + w;
if (ww <= maxWeight && dp[i]) dp[ww] = true;
}
}
return dp;
}
int main() {
int c, n;
cin >> c >> n;
vector<int> w(n), v(n, -1);
for (int& i : w) cin >> i;
auto res = unboundedKnapsack<int, int, true>(c, w, v);
cout << (res != numeric_limits<int>::min() ? -res : -1) << endl;
}
not_522