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Submission #638797

# Submission time Handle Problem Language Result Execution time Memory
638797 2022-09-07T13:55:04 Z Ahmed57 Ice Hockey World Championship (CEOI15_bobek) C++14
10 / 100
 167 ms 8572 KB 
#include <bits/stdc++.h>
using namespace std;
int main(){
    long long n,m;
    cin>>n>>m;
    long long arr[n];
    for(int i = 0;i<n;i++){
        cin>>arr[i];
    }
    long long l = n/2;
    vector<long long> v;
    for(int i = 0;i<(1<<l);i++){
        long long s = 0;
        for(int j = 0;j<l;j++){
            if(i&(1<<j)){
                s+=arr[j];
            }
        }
        v.push_back(s);
    }
    long long all = 0;
    for(int i = 0;i<(1<<(n-l));i++){
        long long s= 0;
        for(int j= l;j<n;j++){
            if(i&(1<<(j-l))){
                s+=arr[j];
            }
        }
        if(s<=m)all++;
        long long it = lower_bound(v.begin(),v.end(),(m-s)+1)-v.begin();
        it--;
        if(it>=0)all+=it;
    }
    cout<<all;
	return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 14 ms 848 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 18 ms 1356 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 31 ms 1356 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 130 ms 4548 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 18 ms 848 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 167 ms 8572 KB Output isn't correct
2 Halted 0 ms 0 KB -