Submission #988763

#	Time	Username	Problem	Language	Result	Execution time	Memory
988763		LeaRouse	Binaria (CCO23_day1problem1)	C++14	6 / 25	2 ms	3028 KiB

Main

//IOI - EGOI - OII 2024
#include<bits/stdc++.h>
#define fastio ios_base::sync_with_stdio(0);    cin.tie(0);
#define ll long long
#define ff first
#define ss second
using namespace std;
const int MAX=1e5+5;
vector<int>v[MAX];
int vis[MAX];
 
void go(){
    int n,k,ans=0;
    cin>>n>>k;
    vector<int>v,v1;
    for(int i=0;i<=n-k;i++){
        int x;  cin>>x;
        v.push_back(x);
    }
    for(int i=0;i<(1<<n);i++){
        int sum=0;
        for(int j=0;j<k;j++){
            int a=(1<<j)&i;
            if(a>0) sum++;
        }
        v1.clear();
        for(int j=0;j<=n-k;j++){
            v1.push_back(sum);
            if(j==n-k)  continue;
            if( ((1<<(j+k))&i)>0 )  sum++;
            if( ((1<<j)&i)>0 )  sum--;
        }
        if(v1==v)   ans++;
    }
    cout<<ans<<endl;
}

int main(){
    fastio;
    go();
    return 0 ;
}

• Subtask 1: 3 / 3
• Subtask 2: 3 / 3
• Subtask 3: 0 / 4
• Subtask 4: 0 / 4
• Subtask 5: 0 / 4
• Subtask 6: 0 / 7