Submission #1008198

#	Time	Username	Problem	Language	Result	Execution time	Memory
1008198		modwwe	Kpart (eJOI21_kpart)	C++17	100 / 100	846 ms	1292 KiB

Main

//https://www.instagram.com/_modwwe/
#pragma GCC optimize("Ofast,unroll-loops")
//#pragma GCC target("avx2,bmi,bmi2")
#include<bits/stdc++.h>
#define int long long
//#define ll long long
#define down cout<<'\n';
#define NHP     ios_base::sync_with_stdio(0);cout.tie(0);cin.tie(0);
#define modwwe  int t;cin>>t; while(t--)
#define bit(i,j) (i>>j&1)
#define sobit(a) __builtin_popcountll(a)
#define task "test"
#define fin(x) freopen(x".inp","r",stdin)
#define fou(x) freopen(x".out","w",stdout)
#define pb push_back
#define checktime   cerr << (double)clock() / CLOCKS_PER_SEC * 1000  << " ms";
using namespace std;
void phongbeo();
const int inf=1e18;
const int mod2=1e9+7;
const int  mod1=998244353;
struct icd
{
    int a,b;
};
struct ib
{
    int a;
    int b;
};
struct ic
{
    int a,b,c;
};
struct id
{
    int a,b,c,d;
};
struct ie
{
    int a,b,c, d,e,f;

};
int n,m,s1,s2,s4,s3,sf,k,r,mid,s5,s6,mx,s7,s8,s9,mx2,res,dem2=0,dem=0,l;
int  i,s10,s12;
int el=29;
main()
{
#ifndef ONLINE_JUDGE
///     fin(task),fou(task);
#endif
    NHP
    /// cin>>s1;
   modwwe
    phongbeo(),down
}
int a[1001];
int b[1001];
int dp[100001];
bool c[1001];
void phongbeo()
 {
     cin>>n;
     s2=0;
 for(int i=1;i<=n;i++)
     cin>>a[i],s2+=a[i],b[i]=b[i-1]+a[i],c[i]=0;
    for(int j=0;j<=s2;j++)
    dp[j]=0;
  for(int i=1;i<=n;i++)
  {
      for(int j=s2;j>a[i];--j)
      {
          dp[j]=max(dp[j-a[i]],dp[j]);
      }
      dp[a[i]]=i;
      for(int j=i-1;j>=1;--j)
      {
          s3=b[i]-b[j-1];
           if(s3%2!=0){c[i-j+1]=1; continue;}
           s3/=2;
            if(dp[s3]<j) {c[i-j+1]=1; if(i-j+1==2)  continue;}
      }
  }
  dem=0;
  for(int i=2;i<=n;i++)
    if(!c[i])
 dem++;
 cout<<dem<<" ";
  for(int i=2;i<=n;i++)
    if(!c[i])
 cout<<i<<" ";
 }

Compilation message (stderr)

Main.cpp:47:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   47 | main()
      | ^~~~

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