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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#847567 | #9871. Just another Sorting Problem | enze114514 | WA | 0ms | 3856kb | C++20 | 1.4kb | 2025-01-08 05:21:02 | 2025-01-08 05:21:03 |
Judging History
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];
}
int b = 0, owo = 0;
for(int i = 0; i < n; i++){
if(a[i] != i + 1){
b++;
}
}
if(s == "Bob"){
for(int i = 1; i < n; i++){
int qwq = b;
if(a[i] != i + 1){
qwq--;
}
if(a[i - 1] != i){
qwq--;
}
swap(a[i], a[i - 1]);
if(a[i] != i + 1){
qwq++;
}
if(a[i - 1] != i){
qwq++;
}
swap(a[i], a[i - 1]);
owo = chmax(qwq, owo);
}
}
if(owo > 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: 3552kb
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: 3552kb
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: 3856kb
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 Alice Bob Bob Alice Alice Bob
result:
wrong answer 2nd lines differ - expected: 'Bob', found: 'Alice'