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답안 #638770

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
638770 2022-09-07T11:37:13 Z HossamHero7 Ice Hockey World Championship (CEOI15_bobek) C++14
70 / 100
 1000 ms 74364 KB 
#include <bits/stdc++.h>

using namespace std;
typedef long long ll;
#define endl '\n'
void solve(){
    ll n,m;
    cin>>n>>m;
    vector<ll> v(n);
    for(auto &i:v) cin>>i;
    map<ll,int> frq;
    for(int mask=0;mask<(1<<n/2);mask++){
        ll sum = 0;
        for(int i=0;i<n/2;i++){
            if((1<<i)&mask){
                sum += v[i];
            }
        }
        frq[sum] ++;
    }
    int prev = 0;
    vector<ll> tmp;
    for(auto &i : frq){
        i.second += prev;
        tmp.push_back(i.first);
        prev = i.second;
    }
    int rem = n-n/2;
    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/2+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 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 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 1 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 340 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 212 KB Output is correct

Subtask #5
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 40 ms 1272 KB Output is correct
2 Correct 270 ms 13116 KB Output is correct
3 Execution timed out 1091 ms 33264 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #6
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 55 ms 1844 KB Output is correct
2 Correct 63 ms 4052 KB Output is correct
3 Correct 175 ms 1140 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 5 ms 212 KB Output is correct
6 Correct 21 ms 2356 KB Output is correct
7 Correct 28 ms 5004 KB Output is correct

Subtask #7
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 155 ms 8132 KB Output is correct
2 Correct 353 ms 9172 KB Output is correct
3 Correct 343 ms 9308 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 60 ms 312 KB Output is correct
6 Correct 251 ms 1832 KB Output is correct
7 Correct 187 ms 19060 KB Output is correct

Subtask #8
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1089 ms 37360 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #9
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 82 ms 5076 KB Output is correct
2 Correct 333 ms 18912 KB Output is correct
3 Correct 17 ms 2680 KB Output is correct
4 Correct 18 ms 2720 KB Output is correct
5 Correct 75 ms 328 KB Output is correct
6 Correct 37 ms 5016 KB Output is correct
7 Correct 955 ms 74312 KB Output is correct

Subtask #10
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1090 ms 74364 KB Time limit exceeded
2 Halted 0 ms 0 KB -