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- #include <cmath>
- #include <iostream>
- using namespace std;
- int a[3][3], c = 2, ans, b[3][3];
- int op()
- {
- return a[0][0] * a[1][1] * a[2][2] + a[0][2] * a[1][0] * a[2][1] +
- a[0][1] * a[1][2] * a[2][0] - a[0][2] * a[1][1] * a[2][0] -
- a[0][1] * a[1][0] * a[2][2] - a[0][0] * a[1][2] * a[2][1];
- }
- void rec(int i, int j)
- {
- if (j == 3)
- {
- j = 0;
- ++i;
- }
- if (i == 3)
- {
- int cur = op();
- if (cur > ans)
- {
- ans = cur;
- for(i = 0; i < 3; ++i)
- for(j = 0; j < 3; ++j)
- b[i][j] = a[i][j];
- }
- return;
- }
- a[i][j] = 1;
- rec(i, j+1);
- a[i][j] = -1;
- rec(i, j+1);
- if (c > 0)
- {
- --c;
- a[i][j] = 4;
- rec(i, j+1);
- ++c;
- }
- }
- int main()
- {
- rec(0, 0);
- cout << ans << endl;
- for(int i = 0; i < 3; ++i)
- {
- for(int j = 0; j < 3; ++j)
- cout << b[i][j] << " ";
- cout << endl;
- }
- return 0;
- }
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