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Cod sursa(job #19108)
#include <stdio.h>
#include <algorithm>
using namespace std;
#define MAX_E 512
#define MAX_N 64
#define FIN "amlei.in"
#define FOUT "amlei.out"
#define abs(x) ((x) < 0 ? -(x) : (x))
int N, A, B, E1[MAX_E], E2[MAX_E];
bool cmp(int i, int j)
{
return abs(i) < abs(j);
}
int main(void)
{
int i, j, V[MAX_N];
long long t;
freopen(FIN, "r", stdin);
freopen(FOUT, "w", stdout);
while (scanf("%d %d %d", &N, &A, &B) == 3)
{
for (i = 0; i < A; i++)
{
for (j = 0; j < N; j++)
scanf("%d", V+j);
sort(V, V+N, cmp);
t = 0;
for (j = 0; j < N; j++)
t = (t<<1)|(V[j]>0);
E1[i] = t;
}
for (i = 0; i < B; i++)
{
for (j = 0; j < N; j++)
scanf("%d", V+j);
sort(V, V+N, cmp);
t = 0;
for (j = 0; j < N; j++)
t = (t<<1)|(V[j]>0);
E2[i] = t;
}
sort(E1, E1+A);
A = unique(E1, E1+A)-E1;
sort(E2, E2+B);
B = unique(E2, E2+B)-E2;
if (A != B) { printf("NU\n"); continue; }
for (i = 0; i < A; i++)
if (E1[i] != E2[i]) break;
printf("%s\n", i == A ? "DA" : "NU");
}
return 0;
}