#include<bits/stdc++.h>
using namespace std;
#define INF 1234567890
#define ll long long
#define SZ 60
bool rev;
ll N;
int K, Q, D, M;
int A[5001], n[SZ];
bool suf[SZ+1];
vector<int> X[1000000];
int dp[SZ][10001], DP[10001];
pair<int, int> P[10001];
int f(int i, int j)
{
if (i >= SZ) return DP[j];
if (i > 0 && suf[i] && j == 0) return true;
int &ret = dp[i][j+5000];
if (ret != -1) return ret;
ret = 0;
// j+x = n[i] (mod K)인 x를 사용해야 한다.
for(int x : X[((n[i]-j)%K+K)%K])
if (f(i+1, (j+x-n[i] >= 0 ? (j+x-n[i])/K : -((-(j+x-n[i])+K-1)/K))))
{
ret = 1;
break;
}
return ret;
}
void G(int j)
{
if (j == 0) return;
auto [nj,x] = P[j+5000];
G(nj);
cout << (rev ? -x : x) << " ";
}
void g(int i, int j)
{
if (i >= SZ) { G(j); return; }
if (i > 0 && suf[i] && j == 0) return;
int &ret = dp[i][j+5000];
for(int x : X[((n[i]-j)%K+K)%K])
if (f(i+1, (j+x-n[i] >= 0 ? (j+x-n[i])/K : -((-(j+x-n[i])+K-1)/K))))
{
g(i+1, (j+x-n[i] >= 0 ? (j+x-n[i])/K : -((-(j+x-n[i])+K-1)/K)));
cout << (rev ? -x : x) << " \n"[i==0];
break;
}
}
int main()
{
ios::sync_with_stdio(0); cin.tie(0);
cin.exceptions(ios::badbit | ios::failbit);
cin >> K >> Q >> D >> M;
for(int i=1; i<=D; i++)
{
cin >> A[i];
}
while(Q--)
{
// clear
rev = false;
for(int i=0; i<1000000; i++)
X[i].clear();
memset(dp, -1, sizeof(dp));
memset(DP, 0, sizeof(DP));
cin >> N;
if (N < 0)
{
rev = true;
N = -N;
for(int i=1; i<=D; i++)
A[i] = -A[i];
}
for(int i=0; i<SZ; i++)
{
n[i] = N % K;
N /= K;
}
suf[SZ] = true;
for(int i=SZ-1; i>=0; i--)
suf[i] = suf[i+1] && (n[i] == 0);
for(int i=1; i<=D; i++)
X[(A[i]%K+K)%K].push_back(A[i]);
// 길이가 매우 길 수 있나? i >= 60에서는 BFS를 돌려 주자.
queue<int> q;
q.push(0), DP[0+5000] = 1;
while(!q.empty())
{
int j = q.front(); q.pop();
for(int x : X[((0-j)%K+K)%K])
{
int nj = (j+x >= 0 ? (j+x)/K : -((-(j+x)+K-1)/K));
if (DP[nj+5000]) continue;
q.push(nj), DP[nj+5000] = 1, P[nj+5000] = {j, x};
}
}
if (!f(0, 0)) cout << "IMPOSSIBLE\n";
else g(0, 0); // 역추적
if (rev)
for(int i=1; i<=D; i++)
A[i] = -A[i];
}
return 0;
}
Compilation message
Main.cpp: In function 'void g(int, int)':
Main.cpp:48:7: warning: unused variable 'ret' [-Wunused-variable]
48 | int &ret = dp[i][j+5000];
| ^~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
26 ms |
26164 KB |
Query 2: Jury has an answer but participant does not |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
26 ms |
26164 KB |
Query 2: Jury has an answer but participant does not |
2 |
Halted |
0 ms |
0 KB |
- |