Submission #73189564

Source Code Expand

#include <bits/stdc++.h>
#define endl '\n'
using namespace std;

using ll=long long;
using ull=unsigned long long;

void solve(){
    ll N, S; cin>>N>>S;
    vector<ll> A(N);
    for(int i=0; i<N; ++i)cin>>A[i];

    if(S==0){
        cout<<1<<endl;
        return;
    }

    int n=N/2;
    vector<ll> B(1<<n);
    for(int bit=0; bit<(1<<n); ++bit){
        ll sum=0;
        for(int i=0; i<n; ++i){
            if((bit>>i)&1){
                sum+=A[i];
            }
        }
        B[bit]=sum;
    }

    map<ll, ll> mp;
    for(int bit=0; bit<(1<<(N-n)); ++bit){
        ll sum=0;
        for(int i=0; i<(N-n); ++i){
            if((bit>>i)&1){
                sum+=A[i+n];
            }
        }
        mp[sum]++;
    }

    ll ans=0;
    for(int i=0; i<(1<<n); ++i){
        if(mp.contains(S-B[i]))ans+=mp[S-B[i]];
    }
    cout<<ans<<endl;
}

int main(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    //cout<<fixed<<setprecision(17);
    int T=1; //cin>>T;
    while(T--)solve();
    return 0;
}

Submission Info

Submission Time
Task E - Assortment of Sweets
User Aseteyan
Language C++23 (GCC 15.2.0)
Score 433
Code Size 1075 Byte
Status AC
Exec Time 1668 ms
Memory 77084 KiB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 433 / 433
Status
AC × 3
AC × 71
Set Name Test Cases
Sample sample01.txt, sample02.txt, sample03.txt
All sample01.txt, sample02.txt, sample03.txt, in01.txt, in02.txt, in03.txt, in04.txt, in05.txt, in06.txt, in07.txt, in08.txt, in09.txt, in10.txt, in11.txt, in12.txt, in13.txt, in14.txt, in15.txt, in16.txt, in17.txt, in18.txt, in19.txt, in20.txt, in21.txt, in22.txt, in23.txt, in24.txt, in25.txt, in26.txt, in27.txt, in28.txt, in29.txt, in30.txt, in31.txt, in32.txt, in33.txt, in34.txt, in35.txt, in36.txt, in37.txt, in38.txt, in39.txt, in40.txt, in41.txt, in42.txt, in43.txt, in44.txt, in45.txt, in46.txt, in47.txt, in48.txt, in49.txt, in50.txt, in51.txt, in52.txt, in53.txt, in54.txt, in55.txt, in56.txt, in57.txt, in58.txt, in59.txt, in60.txt, in61.txt, in62.txt, in63.txt, in64.txt, in65.txt, in66.txt, in67.txt, in68.txt
Case Name Status Exec Time Memory
in01.txt AC 1 ms 3548 KiB
in02.txt AC 1 ms 3592 KiB
in03.txt AC 1 ms 3592 KiB
in04.txt AC 1 ms 3588 KiB
in05.txt AC 1 ms 3716 KiB
in06.txt AC 142 ms 11420 KiB
in07.txt AC 743 ms 76996 KiB
in08.txt AC 309 ms 12100 KiB
in09.txt AC 450 ms 76920 KiB
in10.txt AC 123 ms 11456 KiB
in11.txt AC 1 ms 3604 KiB
in12.txt AC 1 ms 3524 KiB
in13.txt AC 125 ms 11452 KiB
in14.txt AC 758 ms 77084 KiB
in15.txt AC 777 ms 77068 KiB
in16.txt AC 778 ms 76992 KiB
in17.txt AC 150 ms 11596 KiB
in18.txt AC 126 ms 11384 KiB
in19.txt AC 170 ms 11552 KiB
in20.txt AC 170 ms 11512 KiB
in21.txt AC 170 ms 11472 KiB
in22.txt AC 1 ms 3552 KiB
in23.txt AC 169 ms 11596 KiB
in24.txt AC 159 ms 11728 KiB
in25.txt AC 1 ms 3508 KiB
in26.txt AC 1 ms 3488 KiB
in27.txt AC 6 ms 3780 KiB
in28.txt AC 1 ms 3584 KiB
in29.txt AC 1 ms 3508 KiB
in30.txt AC 688 ms 76964 KiB
in31.txt AC 739 ms 76940 KiB
in32.txt AC 1 ms 3524 KiB
in33.txt AC 1 ms 3588 KiB
in34.txt AC 1 ms 3616 KiB
in35.txt AC 1 ms 3600 KiB
in36.txt AC 438 ms 77008 KiB
in37.txt AC 754 ms 76992 KiB
in38.txt AC 657 ms 76968 KiB
in39.txt AC 1013 ms 76992 KiB
in40.txt AC 690 ms 77004 KiB
in41.txt AC 722 ms 76956 KiB
in42.txt AC 1424 ms 76940 KiB
in43.txt AC 1244 ms 77012 KiB
in44.txt AC 1 ms 3560 KiB
in45.txt AC 712 ms 76920 KiB
in46.txt AC 652 ms 76988 KiB
in47.txt AC 1282 ms 77008 KiB
in48.txt AC 1412 ms 76988 KiB
in49.txt AC 1668 ms 77008 KiB
in50.txt AC 1258 ms 76968 KiB
in51.txt AC 160 ms 11588 KiB
in52.txt AC 1316 ms 76992 KiB
in53.txt AC 1 ms 3600 KiB
in54.txt AC 1 ms 3432 KiB
in55.txt AC 1 ms 3524 KiB
in56.txt AC 1 ms 3656 KiB
in57.txt AC 149 ms 11588 KiB
in58.txt AC 149 ms 11548 KiB
in59.txt AC 1 ms 3552 KiB
in60.txt AC 440 ms 76996 KiB
in61.txt AC 1 ms 3584 KiB
in62.txt AC 1 ms 3524 KiB
in63.txt AC 1 ms 3600 KiB
in64.txt AC 1 ms 3608 KiB
in65.txt AC 1 ms 3600 KiB
in66.txt AC 1 ms 3544 KiB
in67.txt AC 1 ms 3608 KiB
in68.txt AC 1 ms 3584 KiB
sample01.txt AC 1 ms 3524 KiB
sample02.txt AC 1 ms 3444 KiB
sample03.txt AC 1 ms 3600 KiB