oj.uz

Submission #92373

# Submission time Handle Problem Language Result Execution time Memory
92373 2019-01-02T16:47:44 Z Alexa2001 Snake Escaping (JOI18_snake_escaping) C++17
75 / 100
 2000 ms 44808 KB 
#include <bits/stdc++.h>

using namespace std;

const int Nmax = (1<<20);

int n, q;
string Val;
int val[Nmax], up[Nmax], down[Nmax], bits[Nmax];

void precalc()
{
    int i, j;
    for(i=0; i<(1<<n); ++i)
        bits[i] = __builtin_popcount(i), up[i] = down[i] = val[i] = Val[i] - '0';

    for(i=0; i<n; ++i)
        for(j=0; j<(1<<n); ++j)
            if(j & (1<<i))
                up[j ^ (1<<i)] += up[j];
            else down[j ^ (1<<i)] += down[j];
}

int solveQ(int mask, int que)
{
    int i, ans = 0;
    for(i=que; ; i = (i-1) & que)
    {
        ans += val[i ^ mask];
        if(i == 0) return ans;
    }
}

int solve0(int mask0, int mask1, int maskq)
{
    int i, ans = 0;
    for(i=mask0; ; i = (i-1) & mask0)
    {
        if(bits[i] & 1) ans -= up[mask1 ^ i];
            else ans += up[mask1 ^ i];
        if(i == 0) return ans;
    }
}

int solve1(int mask0, int mask1, int maskq)
{
    int i, ans = 0;
    for(i=mask1; ; i = (i-1) & mask1)
    {
        if(bits[i] & 1) ans -= down[maskq ^ mask1 ^ i];
            else ans += down[maskq ^ mask1 ^ i];
        if(i == 0) return ans;
    }
}

int query()
{
    string S;
    cin >> S;
    reverse(S.begin(), S.end());

    int i, mask0 = 0, mask1 = 0, maskq = 0;
    for(i=0; i<n; ++i)
    {
        if(S[i] == '0') mask0 ^= (1<<i);
            else if(S[i] == '1') mask1 ^= (1<<i);
                else maskq ^= (1<<i);
    }

    if(bits[maskq] <= bits[mask0] && bits[maskq] <= bits[mask1]) return solveQ(mask1, maskq);
    else if(bits[mask0] < bits[mask1]) return solve0(mask0, mask1, maskq);
        else return solve1(mask0, mask1, maskq);
}

int main()
{
  //  freopen("input", "r", stdin);
    cin.sync_with_stdio(false);

    cin >> n >> q;
    cin >> Val;

    precalc();
    while(q--)
        cout << query() << '\n';

    return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 376 KB Output is correct
2 Correct 3 ms 376 KB Output is correct
3 Correct 3 ms 376 KB Output is correct
4 Correct 3 ms 376 KB Output is correct
5 Correct 3 ms 376 KB Output is correct
6 Correct 3 ms 376 KB Output is correct
7 Correct 3 ms 376 KB Output is correct
8 Correct 3 ms 376 KB Output is correct
9 Correct 3 ms 376 KB Output is correct
10 Correct 3 ms 376 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 376 KB Output is correct
2 Correct 3 ms 376 KB Output is correct
3 Correct 3 ms 376 KB Output is correct
4 Correct 3 ms 376 KB Output is correct
5 Correct 3 ms 376 KB Output is correct
6 Correct 3 ms 376 KB Output is correct
7 Correct 3 ms 376 KB Output is correct
8 Correct 3 ms 376 KB Output is correct
9 Correct 3 ms 376 KB Output is correct
10 Correct 3 ms 376 KB Output is correct
11 Correct 1424 ms 15176 KB Output is correct
12 Correct 1419 ms 14976 KB Output is correct
13 Correct 1460 ms 14220 KB Output is correct
14 Correct 1439 ms 14328 KB Output is correct
15 Correct 1444 ms 15224 KB Output is correct
16 Correct 1461 ms 14328 KB Output is correct
17 Correct 1459 ms 14444 KB Output is correct
18 Correct 1388 ms 16248 KB Output is correct
19 Correct 1400 ms 13432 KB Output is correct
20 Correct 1433 ms 14784 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 376 KB Output is correct
2 Correct 3 ms 376 KB Output is correct
3 Correct 3 ms 376 KB Output is correct
4 Correct 3 ms 376 KB Output is correct
5 Correct 3 ms 376 KB Output is correct
6 Correct 3 ms 376 KB Output is correct
7 Correct 3 ms 376 KB Output is correct
8 Correct 3 ms 376 KB Output is correct
9 Correct 3 ms 376 KB Output is correct
10 Correct 3 ms 376 KB Output is correct
11 Correct 1424 ms 15176 KB Output is correct
12 Correct 1419 ms 14976 KB Output is correct
13 Correct 1460 ms 14220 KB Output is correct
14 Correct 1439 ms 14328 KB Output is correct
15 Correct 1444 ms 15224 KB Output is correct
16 Correct 1461 ms 14328 KB Output is correct
17 Correct 1459 ms 14444 KB Output is correct
18 Correct 1388 ms 16248 KB Output is correct
19 Correct 1400 ms 13432 KB Output is correct
20 Correct 1433 ms 14784 KB Output is correct
21 Correct 1447 ms 18200 KB Output is correct
22 Correct 1471 ms 18556 KB Output is correct
23 Correct 1476 ms 17384 KB Output is correct
24 Correct 1484 ms 17108 KB Output is correct
25 Correct 1484 ms 19124 KB Output is correct
26 Correct 1514 ms 17764 KB Output is correct
27 Correct 1519 ms 17656 KB Output is correct
28 Correct 1440 ms 20228 KB Output is correct
29 Correct 1466 ms 16396 KB Output is correct
30 Correct 1501 ms 18488 KB Output is correct
31 Correct 1476 ms 18204 KB Output is correct
32 Correct 1495 ms 18296 KB Output is correct
33 Correct 1455 ms 17144 KB Output is correct
34 Correct 1521 ms 17216 KB Output is correct
35 Correct 1547 ms 17844 KB Output is correct
36 Correct 1381 ms 16392 KB Output is correct
37 Correct 1440 ms 18296 KB Output is correct
38 Correct 1448 ms 16376 KB Output is correct
39 Correct 1525 ms 17508 KB Output is correct
40 Correct 1490 ms 17336 KB Output is correct

Subtask #4
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 376 KB Output is correct
2 Correct 3 ms 376 KB Output is correct
3 Correct 3 ms 376 KB Output is correct
4 Correct 3 ms 376 KB Output is correct
5 Correct 3 ms 376 KB Output is correct
6 Correct 3 ms 376 KB Output is correct
7 Correct 3 ms 376 KB Output is correct
8 Correct 3 ms 376 KB Output is correct
9 Correct 3 ms 376 KB Output is correct
10 Correct 3 ms 376 KB Output is correct
11 Correct 135 ms 20324 KB Output is correct
12 Correct 133 ms 20440 KB Output is correct
13 Correct 139 ms 20120 KB Output is correct
14 Correct 152 ms 20152 KB Output is correct
15 Correct 129 ms 20380 KB Output is correct
16 Correct 164 ms 20152 KB Output is correct
17 Correct 154 ms 20160 KB Output is correct
18 Correct 118 ms 20392 KB Output is correct
19 Correct 131 ms 20116 KB Output is correct
20 Correct 132 ms 20248 KB Output is correct
21 Correct 144 ms 20244 KB Output is correct
22 Correct 157 ms 20248 KB Output is correct
23 Correct 138 ms 20416 KB Output is correct
24 Correct 158 ms 20216 KB Output is correct
25 Correct 151 ms 20248 KB Output is correct
26 Correct 117 ms 20120 KB Output is correct
27 Correct 131 ms 20236 KB Output is correct
28 Correct 132 ms 20124 KB Output is correct
29 Correct 140 ms 20220 KB Output is correct
30 Correct 144 ms 20168 KB Output is correct
31 Correct 134 ms 20184 KB Output is correct
32 Correct 167 ms 20236 KB Output is correct
33 Correct 153 ms 20172 KB Output is correct
34 Correct 118 ms 20012 KB Output is correct
35 Correct 148 ms 20144 KB Output is correct
36 Correct 149 ms 20248 KB Output is correct
37 Correct 150 ms 20120 KB Output is correct
38 Correct 145 ms 20244 KB Output is correct
39 Correct 147 ms 20376 KB Output is correct
40 Correct 141 ms 20172 KB Output is correct

Subtask #5
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 376 KB Output is correct
2 Correct 3 ms 376 KB Output is correct
3 Correct 3 ms 376 KB Output is correct
4 Correct 3 ms 376 KB Output is correct
5 Correct 3 ms 376 KB Output is correct
6 Correct 3 ms 376 KB Output is correct
7 Correct 3 ms 376 KB Output is correct
8 Correct 3 ms 376 KB Output is correct
9 Correct 3 ms 376 KB Output is correct
10 Correct 3 ms 376 KB Output is correct
11 Correct 1424 ms 15176 KB Output is correct
12 Correct 1419 ms 14976 KB Output is correct
13 Correct 1460 ms 14220 KB Output is correct
14 Correct 1439 ms 14328 KB Output is correct
15 Correct 1444 ms 15224 KB Output is correct
16 Correct 1461 ms 14328 KB Output is correct
17 Correct 1459 ms 14444 KB Output is correct
18 Correct 1388 ms 16248 KB Output is correct
19 Correct 1400 ms 13432 KB Output is correct
20 Correct 1433 ms 14784 KB Output is correct
21 Correct 1447 ms 18200 KB Output is correct
22 Correct 1471 ms 18556 KB Output is correct
23 Correct 1476 ms 17384 KB Output is correct
24 Correct 1484 ms 17108 KB Output is correct
25 Correct 1484 ms 19124 KB Output is correct
26 Correct 1514 ms 17764 KB Output is correct
27 Correct 1519 ms 17656 KB Output is correct
28 Correct 1440 ms 20228 KB Output is correct
29 Correct 1466 ms 16396 KB Output is correct
30 Correct 1501 ms 18488 KB Output is correct
31 Correct 1476 ms 18204 KB Output is correct
32 Correct 1495 ms 18296 KB Output is correct
33 Correct 1455 ms 17144 KB Output is correct
34 Correct 1521 ms 17216 KB Output is correct
35 Correct 1547 ms 17844 KB Output is correct
36 Correct 1381 ms 16392 KB Output is correct
37 Correct 1440 ms 18296 KB Output is correct
38 Correct 1448 ms 16376 KB Output is correct
39 Correct 1525 ms 17508 KB Output is correct
40 Correct 1490 ms 17336 KB Output is correct
41 Correct 135 ms 20324 KB Output is correct
42 Correct 133 ms 20440 KB Output is correct
43 Correct 139 ms 20120 KB Output is correct
44 Correct 152 ms 20152 KB Output is correct
45 Correct 129 ms 20380 KB Output is correct
46 Correct 164 ms 20152 KB Output is correct
47 Correct 154 ms 20160 KB Output is correct
48 Correct 118 ms 20392 KB Output is correct
49 Correct 131 ms 20116 KB Output is correct
50 Correct 132 ms 20248 KB Output is correct
51 Correct 144 ms 20244 KB Output is correct
52 Correct 157 ms 20248 KB Output is correct
53 Correct 138 ms 20416 KB Output is correct
54 Correct 158 ms 20216 KB Output is correct
55 Correct 151 ms 20248 KB Output is correct
56 Correct 117 ms 20120 KB Output is correct
57 Correct 131 ms 20236 KB Output is correct
58 Correct 132 ms 20124 KB Output is correct
59 Correct 140 ms 20220 KB Output is correct
60 Correct 144 ms 20168 KB Output is correct
61 Correct 134 ms 20184 KB Output is correct
62 Correct 167 ms 20236 KB Output is correct
63 Correct 153 ms 20172 KB Output is correct
64 Correct 118 ms 20012 KB Output is correct
65 Correct 148 ms 20144 KB Output is correct
66 Correct 149 ms 20248 KB Output is correct
67 Correct 150 ms 20120 KB Output is correct
68 Correct 145 ms 20244 KB Output is correct
69 Correct 147 ms 20376 KB Output is correct
70 Correct 141 ms 20172 KB Output is correct
71 Correct 1721 ms 44548 KB Output is correct
72 Correct 1769 ms 44808 KB Output is correct
73 Correct 1961 ms 43412 KB Output is correct
74 Execution timed out 2029 ms 41316 KB Time limit exceeded
75 Halted 0 ms 0 KB -