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답안 #386858

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
386858 2021-04-07T13:46:52 Z FatihSolak Ice Hockey World Championship (CEOI15_bobek) C++17
100 / 100
 550 ms 8800 KB 
#include <bits/stdc++.h>
#define N 45
using namespace std;
long long arr[N];
vector<long long> v;
void solve(){
    long long n,m;
    cin >> n >> m;
    for(int i=0;i<n;i++)cin >> arr[i];
    long long ans = 0;
    for(int i=0;i<(1<<(n/2));i++){
        long long sum = 0;
        for(int j=0;j<(n/2);j++){
            if(i & ( 1<<j)){
                sum += arr[j];
            }
        }
        v.push_back(sum);
    }
    sort(v.begin(),v.end());
    int c = n/2;
    n -= n/2;
    for(int i=0;i<(1<<n);i++){
        long long sum = 0;
        for(int j=0;j<n;j++){
            if(i & ( 1<<j)){
                sum += arr[c+j];
            }
        }
        if(sum <=m){
            ans += upper_bound(v.begin(),v.end(),m-sum) -v.begin();
        }
    }
    cout << ans;
}

int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    #ifdef Local
    freopen("in.txt","r",stdin);
    freopen("out.txt","w",stdout);
    #endif
    int t=1;
    //cin>>t;
    while(t--){
        solve();
    }
    #ifdef Local
    cout<<endl<<fixed<<setprecision(2)<<1000.0 * clock() / CLOCKS_PER_SEC<< " milliseconds ";
    #endif
}

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct

Subtask #3
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct

Subtask #4
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct

Subtask #5
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 32 ms 1008 KB Output is correct
2 Correct 103 ms 2536 KB Output is correct
3 Correct 549 ms 8800 KB Output is correct
4 Correct 107 ms 2556 KB Output is correct
5 Correct 17 ms 1008 KB Output is correct
6 Correct 8 ms 752 KB Output is correct
7 Correct 14 ms 1008 KB Output is correct

Subtask #6
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 52 ms 1516 KB Output is correct
2 Correct 37 ms 1008 KB Output is correct
3 Correct 206 ms 4588 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 8 ms 752 KB Output is correct
6 Correct 16 ms 1008 KB Output is correct
7 Correct 15 ms 1008 KB Output is correct

Subtask #7
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 81 ms 1516 KB Output is correct
2 Correct 170 ms 2536 KB Output is correct
3 Correct 177 ms 2536 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 95 ms 2536 KB Output is correct
6 Correct 248 ms 8672 KB Output is correct
7 Correct 76 ms 2536 KB Output is correct

Subtask #8
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 380 ms 4580 KB Output is correct
2 Correct 31 ms 1008 KB Output is correct
3 Correct 11 ms 752 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 9 ms 752 KB Output is correct
6 Correct 196 ms 4580 KB Output is correct
7 Correct 14 ms 1008 KB Output is correct

Subtask #9
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 34 ms 1008 KB Output is correct
2 Correct 99 ms 2536 KB Output is correct
3 Correct 10 ms 752 KB Output is correct
4 Correct 11 ms 752 KB Output is correct
5 Correct 121 ms 2536 KB Output is correct
6 Correct 25 ms 1008 KB Output is correct
7 Correct 234 ms 8668 KB Output is correct

Subtask #10
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 415 ms 8672 KB Output is correct
2 Correct 36 ms 1156 KB Output is correct
3 Correct 11 ms 900 KB Output is correct
4 Correct 550 ms 8668 KB Output is correct
5 Correct 139 ms 4720 KB Output is correct
6 Correct 16 ms 1008 KB Output is correct
7 Correct 27 ms 1516 KB Output is correct