Submission #560202

#	Time	Username	Problem	Language	Result	Execution time	Memory
560202		illyakr	Kpart (eJOI21_kpart)	C++14	30 / 100	2070 ms	488 KiB

Main

//#pragma GCC optimize("inline,Ofast,no-stack-protector,unroll-loops,fast-math,O3")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4.1,sse4.2,popcnt,avx,abm")
#include <bits/stdc++.h>
#define ll long long
//#define int ll
typedef long double ld;
#define fast ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define y0 dfgoert
#define y1 kjsjofd
using namespace std;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
const int mod = 1000000007;
const int INF1e9 = 1010101010;
const int INF1e18 = 1010101010101010101;
const ld PI =  3.14159265358979323846264338327950288419716939937510;

int n;
int a[101010];
bitset<50001> id;
bool can[101010];
void solve() {
  cin >> n;
  for (int i = 1; i <= n; i++)cin >> a[i];
  for (int i = 1; i <= n; i++)can[i] = true;
  vector<int> ans;
  for (int i = 1; i <= n; i++) {
    id = 0;
    id[0] = 1;
    int sum = 0;
    for (int j = i; j <= n; j++) {
      id |= (id << a[j]);
      sum += a[j];
      if (sum % 2 != 0) {can[j - i + 1] = false;continue;}
      if (!id[sum / 2]) {can[j - i + 1] = false;continue;}
    }
  }
  for (int i = 1; i <= n; i++) {
    if (!can[i])continue;
    ans.push_back(i);
  }
  cout << ans.size();
  for (int i : ans)cout << " " << i;
  cout << '\n';
}

int32_t main() {
  fast
    int t = 1;
  cin >> t;
  for (int id = 1; id <= t; id++) {
    //        cout << "Case " << id << ": ";
    solve();
  }
}
/**
    6
    2 3 5 1 8 3
    */

Compilation message (stderr)

Main.cpp:14:21: warning: overflow in conversion from 'long int' to 'int' changes value from '1010101010101010101' to '1448443573' [-Woverflow]
   14 | const int INF1e18 = 1010101010101010101;
      |                     ^~~~~~~~~~~~~~~~~~~

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