QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#300623#4896. Alice、Bob 与 DFSzyc0704195 26ms15396kbC++141.1kb2024-01-08 15:17:512024-01-08 15:17:51

Judging History

你现在查看的是最新测评结果

  • [2024-01-08 15:17:51]
  • 评测
  • 测评结果:5
  • 用时:26ms
  • 内存:15396kb
  • [2024-01-08 15:17:51]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;
const int N = 2e5 + 3;

inline int read() {
    char ch = getchar(); int x = 0;
    while (!isdigit(ch)) {ch = getchar();}
    while (isdigit(ch)) {x = x * 10 + ch - 48; ch = getchar();}
    return x;
}

int n, c[N];
vector<int> g[N], vec;

namespace subtask1 {
    bool dp[N], ans;
    
    bool check() {
        for (int i = 1; i <= n; ++i)
            if (c[i] == 1) return false;
        return true;
    }

    void solve() {
        for (int x = n; x >= 1; --x) {
            dp[x] = 1;
            for (auto y : g[x]) dp[x] ^= dp[y];
        }
        for (auto r : vec) ans ^= dp[r];
        puts(ans ? "Alice" : "Bob");
    }
}

int main() {
    n = read();
    for (int i = 1; i <= n; ++i) c[i] = read();
    for (int x = 1, m, y; x <= n; ++x) {
        m = read();
        while (m--) {
            y = read();
            g[x].push_back(y);
        }
    }
    int k = read(), x;
    while (k--) x = read(), vec.push_back(x);
    if (subtask1 :: check()) subtask1 :: solve();
}

Details

Tip: Click on the bar to expand more detailed information

Subtask #1:

score: 5
Accepted

Test #1:

score: 5
Accepted
time: 0ms
memory: 8300kb

input:

1000
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0...

output:

Alice

result:

ok "Alice"

Test #2:

score: 0
Accepted
time: 3ms
memory: 8164kb

input:

1000
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0...

output:

Bob

result:

ok "Bob"

Test #3:

score: 0
Accepted
time: 0ms
memory: 8164kb

input:

1000
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0...

output:

Alice

result:

ok "Alice"

Test #4:

score: 0
Accepted
time: 0ms
memory: 8084kb

input:

10
0 0 0 0 0 0 0 0 0 0
1 2
1 3
1 4
1 5
1 6
1 7
1 8
1 9
1 10
0
1
1

output:

Bob

result:

ok "Bob"

Test #5:

score: 0
Accepted
time: 0ms
memory: 8244kb

input:

11
0 0 0 0 0 0 0 0 0 0 0
1 2
1 3
1 4
1 5
1 6
1 7
1 8
1 9
1 10
0
0
2
1 11

output:

Alice

result:

ok "Alice"

Test #6:

score: 0
Accepted
time: 8ms
memory: 15396kb

input:

200000
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0...

output:

Bob

result:

ok "Bob"

Test #7:

score: 0
Accepted
time: 3ms
memory: 15292kb

input:

200000
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0...

output:

Bob

result:

ok "Bob"

Test #8:

score: 0
Accepted
time: 26ms
memory: 14396kb

input:

200000
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0...

output:

Alice

result:

ok "Alice"

Test #9:

score: 0
Accepted
time: 26ms
memory: 14264kb

input:

200000
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0...

output:

Bob

result:

ok "Bob"

Test #10:

score: 0
Accepted
time: 22ms
memory: 14324kb

input:

200000
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0...

output:

Bob

result:

ok "Bob"

Test #11:

score: 0
Accepted
time: 17ms
memory: 13272kb

input:

200000
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0...

output:

Bob

result:

ok "Bob"

Test #12:

score: 0
Accepted
time: 17ms
memory: 13200kb

input:

200000
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0...

output:

Bob

result:

ok "Bob"

Test #13:

score: 0
Accepted
time: 21ms
memory: 13272kb

input:

200000
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0...

output:

Alice

result:

ok "Alice"

Test #14:

score: 0
Accepted
time: 16ms
memory: 13132kb

input:

200000
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0...

output:

Bob

result:

ok "Bob"

Test #15:

score: 0
Accepted
time: 2ms
memory: 8120kb

input:

1
0
0
1
1

output:

Alice

result:

ok "Alice"

Test #16:

score: 0
Accepted
time: 3ms
memory: 8244kb

input:

3
0 0 0
1 2
1 3
0
1
1

output:

Alice

result:

ok "Alice"

Test #17:

score: 0
Accepted
time: 2ms
memory: 8076kb

input:

4
0 0 0 0
1 2
1 3
0
0
2
1 4

output:

Bob

result:

ok "Bob"

Subtask #2:

score: 0
Wrong Answer

Test #18:

score: 0
Wrong Answer
time: 3ms
memory: 7996kb

input:

7
0 0 1 1 0 1 1
1 2
2 3 4
0
2 5 6
0
1 7
0
1
1

output:


result:

wrong answer Unexpected EOF in the participants output

Subtask #3:

score: 0
Wrong Answer

Test #55:

score: 0
Wrong Answer
time: 0ms
memory: 8284kb

input:

7
0 0 1 1 0 1 1
1 2
2 3 4
0
2 5 6
0
1 7
0
1
1

output:


result:

wrong answer Unexpected EOF in the participants output

Subtask #4:

score: 0
Wrong Answer

Test #103:

score: 0
Wrong Answer
time: 3ms
memory: 8120kb

input:

10
1 1 1 1 1 1 1 1 1 1
1 2
4 3 5 7 8
1 4
0
1 6
0
0
1 9
1 10
0
1
1

output:


result:

wrong answer Unexpected EOF in the participants output

Subtask #5:

score: 0
Skipped

Dependency #4:

0%

Subtask #6:

score: 0
Skipped

Dependency #1:

100%
Accepted

Dependency #2:

0%