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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#180953#5250. Combination Locksucup-team1209#WA 1ms3620kbC++201.8kb2023-09-16 14:38:352023-09-16 14:38:36

Judging History

你现在查看的是最新测评结果

  • [2023-09-16 14:38:36]
  • 评测
  • 测评结果:WA
  • 用时:1ms
  • 内存:3620kb
  • [2023-09-16 14:38:35]
  • 提交

answer

#include <bits/stdc++.h>
#define cs const
#define pb push_back
using namespace std;
using pi = pair <int, int> ; 
using ll = long long;
cs int N = 1050;  

int T, n, C;  
char a[N], b[N];
bool ban[N];

using Set = bitset <N> ; 
Set edge [N];

bool dfs(int x, Set & unvis, vector <int> & match) {
    for(Set z = edge[x]; ; ) {
        z &= unvis; 
        int y = z._Find_first();
        if(y == N) return 0; 
        if(unvis.reset(y), !match[y] || dfs(match[y], unvis, match)) {
            return match[y] = x, 1; 
        }
    }
}
int match (int nl, int nr) {
    Set unvis; 
    unvis.set();
    vector <int> match(nr + 1), ret(nl + 1);
    int ans = 0; 
    for(int i = 1; i <= nl; i++) 
        if(dfs(i, unvis, match))
            unvis.set(), ++ ans; 
    return ans; 
}


void Main() {
    scanf("%d%d", &n, &C);
    scanf("%s%s", a, b);
    int S = 0; 
    for(int i = 0; i < n; i++) 
        S = S << 1 | (a[i] == b[i]);
    for(int i = 0; i < C; i++) {
        int x = 0; 
        scanf("%s", a);
        for(int j = 0; j < n; j++) 
            x = x << 1 | (a[j] == '=');
        ban[x] = 1; 
    }
    for(int i = 0; i < (1 << n); i++) 
    if(!ban[i] && __builtin_popcount(i) & 1) {
        for(int j = 0; j < n; j++) {
            int v = i ^ (1 << j);
            if(!ban[v]) edge[i][v] = 1; 
        }
    }
    int cnt = match(1 << n, 1 << n);
    for(int j = 0; j < n; j++) {
        int v = S ^ (1 << j);
        edge[v][S] = edge[S][v] = 0; 
    }
    int cnt2 = match(1 << n, 1 << n);
    if(cnt == cnt2) {
        puts("Bob");
    }
    else {
        puts("Alice");
    }
    for(int i = 0; i < (1 << n); i++) 
        edge[i].reset();
}

int main() {
    #ifdef zqj
    freopen("1.in","r",stdin);
    #endif

    cin >> T; 
    while(T--) Main();
    return 0;
}

詳細信息

Test #1:

score: 100
Accepted
time: 1ms
memory: 3548kb

input:

2
1 0
0
0
1 1
0
0
.

output:

Alice
Bob

result:

ok 2 lines

Test #2:

score: -100
Wrong Answer
time: 1ms
memory: 3620kb

input:

8
2 0
00
00
2 1
00
00
..
2 1
00
00
=.
2 2
00
00
..
=.
2 1
00
00
.=
2 2
00
00
..
.=
2 2
00
00
=.
.=
2 3
00
00
..
=.
.=

output:

Alice
Alice
Alice
Alice
Bob
Bob
Bob
Bob

result:

wrong answer 3rd lines differ - expected: 'Bob', found: 'Alice'