oj.uz

답안 #638791

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
638791 2022-09-07T13:49:23 Z HossamHero7 Ice Hockey World Championship (CEOI15_bobek) C++14
90 / 100
 1000 ms 60868 KB 
#include <bits/stdc++.h>

using namespace std;
typedef long long ll;
#define endl '\n'
#pragma GCC optimize("O2")
void solve(){
    ll n,m;
    cin>>n>>m;
    vector<ll> v(n);
    for(auto &i:v) cin>>i;
    unordered_map<ll,int> frq;
    for(int mask=0;mask<(1<<n/2);mask++){
        ll sum = 0;
        for(int i=0;i<(n>>1);i++){
            if((1<<i)&mask){
                sum += v[i];
            }
        }
        frq[sum] ++;
    }
    int prev = 0;
    vector<ll> tmp;
    for(auto &i : frq){
        tmp.push_back(i.first);
    }
    sort(tmp.begin(),tmp.end());
    for(auto i : tmp){
        frq[i] += prev;
        prev = frq[i];
    }
    int rem = n-(n>>1);
    ll ans = 0;
    for(int mask=0;mask<(1<<rem);mask++){
        ll sum = 0;
        for(int i=0;i<rem;i++){
            if((1<<i)&mask){
                sum += v[(n>>1)+i];
            }
        }
        if(sum > m) continue;
        int upper = upper_bound(tmp.begin(),tmp.end(),m-sum) - tmp.begin();
        upper --;
        ans += frq[tmp[upper]];
    }
    cout<<ans<<endl;
}
int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);      cout.tie(0);
    solve();
    return 0;
}

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct

Subtask #3
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 212 KB Output is correct

Subtask #4
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct

Subtask #5
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 25 ms 1100 KB Output is correct
2 Correct 153 ms 9956 KB Output is correct
3 Correct 746 ms 27824 KB Output is correct
4 Correct 149 ms 12116 KB Output is correct
5 Correct 9 ms 328 KB Output is correct
6 Correct 6 ms 596 KB Output is correct
7 Correct 23 ms 4068 KB Output is correct

Subtask #6
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 32 ms 1436 KB Output is correct
2 Correct 37 ms 3428 KB Output is correct
3 Correct 96 ms 928 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 5 ms 316 KB Output is correct
6 Correct 16 ms 1972 KB Output is correct
7 Correct 27 ms 3940 KB Output is correct

Subtask #7
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 105 ms 6820 KB Output is correct
2 Correct 184 ms 7476 KB Output is correct
3 Correct 192 ms 7644 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 58 ms 296 KB Output is correct
6 Correct 149 ms 1424 KB Output is correct
7 Correct 144 ms 15360 KB Output is correct

Subtask #8
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 916 ms 30436 KB Output is correct
2 Correct 46 ms 4068 KB Output is correct
3 Correct 16 ms 1968 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 5 ms 212 KB Output is correct
6 Correct 420 ms 30472 KB Output is correct
7 Correct 25 ms 4080 KB Output is correct

Subtask #9
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 46 ms 4072 KB Output is correct
2 Correct 219 ms 15264 KB Output is correct
3 Correct 16 ms 2080 KB Output is correct
4 Correct 16 ms 1968 KB Output is correct
5 Correct 63 ms 308 KB Output is correct
6 Correct 31 ms 4032 KB Output is correct
7 Correct 779 ms 60780 KB Output is correct

Subtask #10
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1060 ms 60868 KB Time limit exceeded
2 Halted 0 ms 0 KB -