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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#847563#9871. Just another Sorting Problemenze114514WA 0ms3620kbC++201.1kb2025-01-08 05:11:322025-01-08 05:11:34

Judging History

你现在查看的是最新测评结果

  • [2025-01-08 05:11:34]
  • 评测
  • 测评结果:WA
  • 用时:0ms
  • 内存:3620kb
  • [2025-01-08 05:11:32]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ld = long double;

#define pb push_back

const ld pi = 3.14159265358979323846;
const int mod = (int)1e9 + 7;
const ll INF = 1e18;

template<typename T>
T chmax(T a, T b){
    return a > b ? a : b;
}

template<typename T>
T chmin(T a, T b){
    return a > b ? b : a;
}

const int N = (int)2e5 + 1, M = N * 2;

void solve(){
    int n;
    string s;
    cin >> n >> s;

    int a[n];
    for(int i = 0; i < n; i++){
        cin >> a[i];
    }
    if(n <= 2){
        cout << "Alice" << endl;
        return;
    }

    if(s == "Bob"){
        cout << s << endl;
    }
    else{
        int qwq = 0;
        for(int i = 0; i < n; i++){
            if(a[i] != i + 1){
                qwq++;
            }
        }
        if(qwq > 2){
            cout << "Bob" << endl;
        }
        else{
            cout << "Alice" << endl;
        }
    }
}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);

    int t = 1;
    cin >> t;

    while(t--){
        solve();    
    }
    return 0;
}

Details

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Test #1:

score: 100
Accepted
time: 0ms
memory: 3612kb

input:

3
2 Alice
2 1
3 Bob
1 3 2
10 Bob
1 2 3 4 5 6 7 8 10 9

output:

Alice
Bob
Bob

result:

ok 3 lines

Test #2:

score: 0
Accepted
time: 0ms
memory: 3620kb

input:

2
2 Alice
2 1
2 Bob
2 1

output:

Alice
Alice

result:

ok 2 lines

Test #3:

score: -100
Wrong Answer
time: 0ms
memory: 3600kb

input:

10
3 Bob
2 3 1
3 Alice
3 1 2
3 Bob
3 1 2
3 Alice
1 3 2
3 Alice
3 2 1
3 Bob
2 1 3
3 Bob
1 3 2
3 Alice
2 1 3
3 Alice
2 3 1
3 Bob
3 2 1

output:

Bob
Bob
Bob
Alice
Alice
Bob
Bob
Alice
Bob
Bob

result:

wrong answer 1st lines differ - expected: 'Alice', found: 'Bob'