QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#374681 | #8305. Accelerator | PetroTarnavskyi# | RE | 0ms | 0kb | C++20 | 1.4kb | 2024-04-02 16:53:13 | 2024-04-02 16:53:14 |
answer
#include <bits/stdc++.h>
using namespace std;
#define FOR(i, a, b) for(int i = (a); i < (b); i++)
#define RFOR(i, a, b) for(int i = (a) - 1; i >= (b); i--)
#define SZ(a) int(a.size())
#define ALL(a) a.begin(), a.end()
#define PB push_back
#define MP make_pair
#define F first
#define S second
typedef long long LL;
typedef vector<int> VI;
typedef pair<int, int> PII;
typedef double db;
const int LOG = 8;
const int M = 1 << LOG;
int lastPos[M];
int win[M];
int main()
{
ios::sync_with_stdio(0);
cin.tie(0);
fill(lastPos, lastPos + M, -1);
int n, m;
cin >> n >> m;
FOR(i, 0, n)
{
int a;
cin >> a;
lastPos[a] = i;
}
set<PII> s;
FOR(x, 0, M)
{
if (lastPos[x] != -1)
{
s.insert({-lastPos[x], x});
}
}
auto calcWin = [&]()
{
fill(win, win + M, -1);
for (auto [i, x] : s)
{
if (win[x] != -1)
{
assert(win[x] == 1);
continue;
}
win[x] = 0;
FOR(j, 0, LOG)
{
int y = x ^ (1 << j);
if (win[y] == -1)
{
win[y] = 1;
}
}
}
};
calcWin();
while (m--)
{
int op, k;
cin >> op >> k;
if (op == 1)
{
if (lastPos[k] != -1)
{
s.erase({-lastPos[k], k});
}
lastPos[k] = n++;
s.insert({-lastPos[k], k});
calcWin();
}
else
{
assert(win[k] != -1);
cout << (win[k] == 1 ? "Grammy\n" : "Alice\n");
}
}
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 0
Runtime Error
input:
3 3 1 2 3 1 10 4 5 5 5 5