60 lines
1.2 KiB
C++
60 lines
1.2 KiB
C++
#include <iostream>
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#include <cstdio>
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#include <cstdlib>
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#include <cstring>
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using namespace std;
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#define maxn 2005
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int fn, gn, hn, en;
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int f[maxn], g[maxn], h[maxn], e[maxn];
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void input()
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{
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scanf("%d", &fn);
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for (int i = fn -1; i >=0; i--)
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scanf("%d", &f[i]);
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scanf("%d", &gn);
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for (int i = gn -1; i >=0; i--)
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scanf("%d", &g[i]);
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scanf("%d", &hn);
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for (int i = hn -1; i >=0; i--)
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scanf("%d", &h[i]);
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}
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void mul()
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{
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memset(e, 0, sizeof(e));
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for (int i =0; i < fn; i++)
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for (int j =0; j < gn; j++)
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e[i + j] ^= f[i] * g[j];
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en = fn + gn;
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while (en >=0&& e[en] ==0)
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en--;
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en++;
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}
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void mo()
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{
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while (en >= hn)
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{
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int d = en - hn;
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for (int i = hn -1; i >=0; i--)
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e[i + d] ^= h[i];
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while (en >=0&& e[en] ==0)
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en--;
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en++;
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}
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}
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int main()
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{
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int t;
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scanf("%d", &t);
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while (t--)
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{
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input();
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mul();
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mo();
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printf("%d", en);
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for (int i = en -1; i >=0; i--)
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printf(" %d", e[i]);
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putchar('\n');
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}
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return 0;
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}
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