43 lines
1.0 KiB
C++
43 lines
1.0 KiB
C++
#include <stdio.h>
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#include <string.h>
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#include <algorithm>
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using namespace std;
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int a[805][805],b[805][805],c[805][805];
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int main()
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{
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int n,i,j,k;
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while(~scanf("%d",&n))
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{
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for(i = 0; i<n; i++)
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for(j = 0; j<n; j++)
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{
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scanf("%d",&a[i][j]);
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a[i][j]%=3;
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c[i][j] = 0;
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}
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for(i = 0; i<n; i++)
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for(j = 0; j<n; j++)
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{
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scanf("%d",&b[i][j]);
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b[i][j]%=3;
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}
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for(i = 0; i<n; i++)
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for(j = 0; j<n; j++)
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{
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if(!a[i][j])
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continue;
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for(k = 0; k<n; k++)
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c[i][k] = c[i][k]+a[i][j]*b[j][k];
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}
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for(i = 0; i<n; i++)
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{
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for(j = 0; j<n; j++)
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if(j==n-1)
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printf("%d\n",c[i][j]%3);
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else
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printf("%d ",c[i][j]%3);
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}
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}
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return 0;
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}
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