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Submission #236096

# Submission time Handle Problem Language Result Execution time Memory
236096 2020-05-31T07:47:17 Z VEGAnn Dojave (COCI17_dojave) C++14
42 / 140
 4000 ms 12664 KB 
#include <bits/stdc++.h>
#define sz(x) ((int)x.size())
#define a3 array<int, 3>
using namespace std;
const int N = (1 << 20);
const int oo = 2e9;
int a[N], need, m, ans = 0;
bool in[N];

int main(){
    ios_base::sync_with_stdio(0); cin.tie(0);

#ifdef _LOCAL
    freopen("in.txt","r",stdin);
#endif // _LOCAL

    cin >> m;

    for (int i = 0; i < (1 << m); i++)
        cin >> a[i];

    need = (1 << m) - 1;

    for (int l = 0; l < (1 << m); l++){
        int xr = 0;

        fill(in, in + (1 << m), 0);

        for (int r = l; r < (1 << m); r++){
            xr ^= a[r];
            in[a[r]] = 1;

            if (xr == need){
                if (r - l + 3 <= (1 << m) || (r - l + 1 > 1))
                    ans++;
//                else cerr << l << " " << r << '\n';
            } else {
                bool ok = 0;

                for (int i = l; i <= r && !ok; i++){
                    int nd = (need ^ a[i] ^ xr);

                    if (!in[nd])
                        ok = 1;
                }

                if (ok)
                    ans++;
//                else cerr << l << " " << r << '\n';
            }
        }
    }

    cout << ans;

    return 0;
}

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 6 ms 384 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1324 ms 384 KB Output is correct
2 Correct 552 ms 384 KB Output is correct

Subtask #4
0 / 14.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4046 ms 384 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1626 ms 572 KB Output is correct
2 Execution timed out 4067 ms 512 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #6
0 / 14.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4064 ms 1024 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4064 ms 1024 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #8
0 / 14.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4066 ms 3320 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #9
0 / 14.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4088 ms 12536 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #10
0 / 14.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4040 ms 12664 KB Time limit exceeded
2 Halted 0 ms 0 KB -