제출 #602764

#제출 시각아이디문제언어결과실행 시간메모리
602764berrKpart (eJOI21_kpart)C++17
0 / 100
327 ms395856 KiB
#include <bits/stdc++.h> using namespace std; vector<vector<int>> check(1005, vector<int>(100005, 0)); int32_t main() { ios_base::sync_with_stdio(false); cin.tie(0); int t; cin>>t; int p=2; while(t--) { int n; cin>>n; vector<int> pre(n), a(n), count(n+1); for(int i=0; i<n; i++) { cin>>a[i]; if(i==0) pre[i]=a[i]; else pre[i]=pre[i-1]+a[i]; } vector<int> knp(1e5, -1); for(int i=0; i<n; i++) { for(int l=2; l<=i+1; l++) { int a=pre[i]; if(i-l>=0) a-=pre[i-l]; if(a%2==0) { check[i][a/2]=l+p; } } } count[n]=1; for(int i=n-1; i>=0; i--) { count[i]=count[i+1]+1; } for(int i=0; i<n; i++) { for(int l=pre[n-1]/2; l>0; l--) { if(knp[l]>=0) { knp[l+a[i]]=max(knp[l], knp[l+a[i]]); if(check[i][a[i]+l]>p&&knp[a[i]+l]>=i-check[i][a[i]+l]+1-p) { count[check[i][a[i]+l]-p]--; } } } knp[a[i]]=i; if(check[i][a[i]]>p) { count[check[i][a[i]]-p]--; } } vector<int> ans; for(int i=2; i<=n; i++) { if(count[i]==0) ans.push_back(i); } cout<<ans.size()<<" "; for(auto i: ans) cout<<i<<" "; cout<<"\n"; p+=n; } }
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