QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#614050 | #4797. Xormites | ucup-team4153# | WA | 0ms | 3752kb | C++20 | 1.6kb | 2024-10-05 15:28:36 | 2024-10-05 15:28:42 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
const int N = 5e4 + 7;
int T, n;
int a[N];
map<string,bool>mp[2];
vector<int>R;
bool Sol(int l,int r,int sp)
{
int c1=0;for(int i=l;i<=r;i++)c1+=R[i];if(c1%2)return 0;
c1/=2;c1+=sp;if(c1%2==0)return 0;
//cout<<c1<<"%%\n";
while(r-l+1>=4)
{
int A=R[l],B=R[l+1],C=R[r-1],D=R[r];l+=2,r-=2;
bool x=(A==D&&B==C),y=(A==B&&C==D);
if(!(x||y))return 0;
}
return 1;
}
void sol()
{
if(n%2==0){cout<<"First\n";return;}
int ans=Sol(1,n-1,R[n])|Sol(2,n,R[1]);
if(ans){cout<<"First\n";return;}cout<<"Second\n";
}
void solve() {
cin >> n;
for (int i = 1; i <= n; i++)cin >> a[i];
for (int i = 30; i >= 0; i--) {
vector<int> b(n + 1, 0);
int sum = 0;
for (int j = 1; j <= n; j++) {
b[j] = a[j] >> i & 1;
sum += b[j];
}
if (sum % 2 == 0)continue;
R=b;
sol();return;
////
sum--;
stack<int> stk;
for (int i = 1; i <= n; i++) {
if (stk.size() && stk.top() == b[i])stk.pop();
else stk.push(b[i]);
}
if (stk.size() == 1) {
if (sum / 2 % 2 == 0)cout << "First\n";
else cout << "Second\n";
} else if (stk.size() % 2 == 0)cout << "First\n";
else cout << "Second\n";
return;
}
cout << "Draw\n";
}
signed main() {
ios::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
cin >> T;
while (T--)solve();
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 0ms
memory: 3752kb
input:
3 2 3 3 2 3 5 3 4 4 4
output:
Draw First Second
result:
ok 3 lines
Test #2:
score: 0
Accepted
time: 0ms
memory: 3536kb
input:
12 10 1 3 1 3 3 3 2 1 3 3 10 1 3 3 3 1 3 2 1 1 3 9 1 2 3 3 3 1 2 2 3 9 1 3 2 1 3 3 2 2 2 10 3 2 2 2 3 3 1 2 1 2 10 2 1 2 3 3 3 3 2 3 2 10 2 1 1 3 3 1 1 1 2 1 10 2 1 1 1 1 1 1 2 2 3 10 2 1 2 1 1 2 2 3 3 3 9 2 2 1 1 3 3 1 2 3 9 1 3 3 2 2 2 2 3 2 10 1 1 1 1 1 2 2 2 1 2
output:
First First Second Second First First Draw First First Draw Draw Draw
result:
ok 12 lines
Test #3:
score: 0
Accepted
time: 0ms
memory: 3592kb
input:
12 9 3 4 1 5 2 1 5 3 1 10 6 2 4 5 4 2 5 7 5 6 9 5 3 2 1 2 4 4 1 4 9 5 7 6 2 7 2 5 7 4 10 7 5 1 6 7 1 5 1 4 5 10 4 2 6 2 7 2 2 2 3 5 10 7 3 4 7 4 4 2 3 7 5 9 3 3 7 1 6 3 7 2 3 10 5 3 7 7 2 6 4 7 3 1 10 1 7 4 2 4 2 6 6 4 4 10 4 1 3 4 4 4 5 4 1 7 9 4 3 4 7 1 6 2 2 5
output:
Second First Second Second First First First Second First First First Second
result:
ok 12 lines
Test #4:
score: 0
Accepted
time: 0ms
memory: 3536kb
input:
12 9 1 5 7 1 4 7 7 3 1 9 2 7 3 2 1 5 1 6 6 10 3 4 6 6 4 5 4 7 5 4 9 2 3 1 5 7 3 6 3 3 10 1 2 5 2 2 6 3 7 7 3 9 2 3 1 1 5 5 2 6 2 9 6 6 4 1 5 4 6 1 2 10 2 6 2 3 6 7 7 4 2 5 10 3 4 5 5 2 1 1 2 4 1 9 7 5 5 2 3 7 7 1 1 10 7 1 3 7 3 4 4 1 7 5 10 2 6 5 7 3 6 1 3 3 3
output:
Second Second First Second Draw Second Second Draw First First First First
result:
ok 12 lines
Test #5:
score: -100
Wrong Answer
time: 0ms
memory: 3628kb
input:
12 10 1 1 1 2 1 2 1 1 1 2 10 1 1 1 2 1 1 2 1 1 2 10 1 2 2 1 2 1 1 1 2 1 10 2 2 2 1 2 2 1 2 2 2 10 1 1 1 2 1 1 2 2 2 1 10 2 2 1 2 1 1 2 1 1 2 10 2 2 1 2 1 1 1 1 1 2 10 2 2 1 2 1 1 1 2 2 2 10 2 1 1 1 1 1 2 1 2 2 10 2 1 2 1 2 1 1 2 2 2 10 2 1 1 1 1 1 2 1 1 1 15 913276852 922705701 913276910 914316078 2...
output:
First First Draw Draw Draw First Draw Draw Draw Draw Draw First
result:
wrong answer 12th lines differ - expected: 'Second', found: 'First'