Submission #1089245

#	Time	Username	Problem	Language	Result	Execution time	Memory
1089245		vjudge1	Kpart (eJOI21_kpart)	C++17	0 / 100	2009 ms	856 KiB

Main

#include <bits/stdc++.h>
//qwerty47924692
using namespace std;
using ll = int;
const ll N=1e5+29;
ll n,t,a[N],mp[N],dp[N];
bool can(ll l,ll r){
    multiset<ll>s;
    ll sum=0,cur=0;
    for(ll i=0;i<N;i++)dp[i]=0;
    for(ll i=l;i<=r;i++){
       sum+=a[i];
       dp[a[i]]=1;
    }
    if(sum&1)return 0;
    for(ll j=l;j<=r;j++){
        for(ll i=a[j];i<=sum/2;i++){
            dp[i]|=dp[i-a[j]];
        }
    }
    return dp[sum/2];
}
void solve(){
    cin>>n;
    for(ll i=1;i<=n;i++){
        cin>>a[i];
    }
    vector<ll>v;
    for(ll k=2;k<=n;k++){
        ll ch=1;

        for(ll i=1;i+k-1<=n;i++){
            ll mid=((i+k-1)+i)>>1;
            ch&=can(i,i+k-1);


        }if(ch)v.push_back(k);

    }
    cout<<v.size();

    for(ll i:v){
        cout<<' '<<i;
    }
}
int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);

    ll t;

    cin>>t;
    while(t--){
        solve();
        cout<<'\n';
    }
}

Compilation message (stderr)

Main.cpp: In function 'bool can(ll, ll)':
Main.cpp:9:14: warning: unused variable 'cur' [-Wunused-variable]
    9 |     ll sum=0,cur=0;
      |              ^~~
Main.cpp: In function 'void solve()':
Main.cpp:33:16: warning: unused variable 'mid' [-Wunused-variable]
   33 |             ll mid=((i+k-1)+i)>>1;
      |                ^~~

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