QOJ.ac
QOJ
| 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 |
|---|---|---|---|---|---|---|---|---|---|
| #815933 | #9871. Just another Sorting Problem | tamir# | WA | 1ms | 3608kb | C++20 | 969b | 2024-12-15 19:05:19 | 2024-12-15 19:05:20 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
void solve() {
int n; string st;
cin >> n >> st;
vector<int> a(n);
int cnt = 0;
for(int i = 0; i < n; i++) {
cin >> a[i];
a[i]--;
if(a[i] != i) {
cnt++;
}
}
if(st == "Alice") {
if(cnt <= 2) {
cout << "Alice\n";
return;
}
} else {
int mx = 0;
for(int i = 1; i < n; i++){
int t = cnt;
//(i - 1, i)
if(a[i - 1] == i - 1)t++;
if(a[i] == i)t++;
if(a[i] == i - 1)t--;
if(a[i - 1] == i)t--;
mx = max(mx, t);
}
if(mx >= 3){
cout << "Bob\n";
} else {
cout << "Alice\n";
}
}
}
int main() {
ios::sync_with_stdio(0); cin.tie(nullptr);
int t = 1;
cin >> t;
while(t--) {
solve();
}
}
详细
Test #1:
score: 100
Accepted
time: 1ms
memory: 3608kb
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: 3544kb
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: 3604kb
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:
Alice Alice Alice Alice Bob Bob Alice Bob
result:
wrong answer 2nd lines differ - expected: 'Bob', found: 'Alice'