Submission #918788

#	Time	Username	Problem	Language	Result	Execution time	Memory
918788		Abito	Binaria (CCO23_day1problem1)	C++17	10 / 25	1041 ms	16980 KiB

Main

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#define F first
#define S second
#define pb push_back
#define ppb pop_back
#define ep insert
#define endl '\n'
#define elif else if
#define pow pwr
#define sqrt sqrtt
#define int long long
#define ll long long
#define y1 YONE
#define free freeee
#define lcm llcm
typedef unsigned long long ull;
using namespace std;
const int N=1e6+5,M=1e6+3;
int a[N],n,k,b[N],p[N],ans;
int32_t main(){
    ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
    cin>>n>>k;
    for (int i=1;i<=n-k+1;i++) cin>>b[i];
    for (int mask=0;mask<(1<<k);mask++){
        if (__builtin_popcount(mask)!=b[1]) continue;
        bool ok=true;
        for (int j=1;j<=k;j++) p[j]=p[j-1]+bool(mask&(1<<(j-1)));
        for (int i=k+1;i<=n;i++){
            p[i]=p[i-1];
            int s=p[i]-p[i-k];
            if (s>b[i-k+1]){
                ok=false;
                break;
            }
            if (s<b[i-k+1]) p[i]++,s++;
            if (s!=b[i-k+1]) {ok=false;break;}
        }
        ans+=ok;
    }cout<<ans%M<<endl;
    return 0;
}

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