Submission #1043997

#	Time	Username	Problem	Language	Result	Execution time	Memory
1043997		juicy	Kpart (eJOI21_kpart)	C++17	0 / 100	234 ms	860 KiB

Main

#include <bits/stdc++.h>

using namespace std;

#ifdef LOCAL
#include "debug.h"
#else
#define debug(...) 42
#endif

const int N = 1e3 + 5, A = 1e5 + 5;

int n;
int dp[A], pf[N];
bool res[N];

int main() {
  ios::sync_with_stdio(false); cin.tie(nullptr);

  int t; cin >> t;
  while (t--) {
    cin >> n;
    fill(res + 2, res + n + 1, 1);
    memset(dp, -1, sizeof(dp));
    for (int i = 1; i <= n; ++i) {
      int x; cin >> x;
      pf[i] = pf[i - 1] + x;
      dp[x] = i;
      for (int j = A - 1; j >= x; --j) {
        dp[j] = max(dp[j], dp[j - x]);
      }
      for (int j = 2; j <= i; ++j) {
        int x = pf[i] - pf[i - j];
        res[j] &= x % 2 == 0 && dp[x / 2] > i - j;
      }
    }
    vector<int> ans;
    for (int i = 2; i <= n; ++i) {
      if (res[i]) {
        ans.push_back(i);
      }
    }
    cout << ans.size() << " ";
    for (int x : ans) {
      cout << x << " ";
    }
    cout << "\n";
  }
  return 0;
}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 20
• Subtask 3: 0 / 70