Submission #1121652

#	Time	Username	Problem	Language	Result	Execution time	Memory
1121652		vjudge1	Ice Hockey World Championship (CEOI15_bobek)	C++17	10 / 100	1074 ms	162124 KiB

bobek

#include <bits/stdc++.h>
using namespace std;

int main() {

  int64_t n, m, x, ans = 0;
  cin >> n >> m;
  unordered_multiset<int64_t> prices;
  for (int64_t i = 0; i < n; i++) {
    cin >> x;
    prices.insert(x);
  }

  unordered_map<int64_t, int64_t> dp;
  dp[0] = 1;

  for (const int64_t &price : prices) {
    /*
    for (int64_t i = m; i >= price; i--) {
      if (dp.find(i - price) == dp.end()) {
        continue;
      }

      dp[i] += dp[i - price];
    }
    */
    for (const auto &[i, b] : dp) {
      if (i + price > m or b == 0) {
        continue;
      }
      dp[i + price] += b;
    }
  }

  for (const auto &[a, b] : dp) {
    ans += b;
  }

  cout << ans << '\n';
  return 0;
}

• Subtask 1: 10 / 10
• Subtask 2: 0 / 10
• Subtask 3: 0 / 10
• Subtask 4: 0 / 10
• Subtask 5: 0 / 10
• Subtask 6: 0 / 10
• Subtask 7: 0 / 10
• Subtask 8: 0 / 10
• Subtask 9: 0 / 10
• Subtask 10: 0 / 10