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rotateMatrixElements
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rotateMatrixElements
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import java.lang.*;
import java.util.*;
class GFG {
static int r = 4;
static int c = 4;
static void rotate_matrix(int p, int q, int matrix[][])
{
int rw = 0, cl = 0;
int previous, current;
while (rw < p && cl < q) {
if (rw + 1 == p || cl + 1 == q)
break;
previous = matrix[rw + 1][cl];
for (int x = cl; x < q; x++) {
current = matrix[rw][x];
matrix[rw][x] = previous;
previous = current;
}
rw++;
for (int x = rw; x < p; x++) {
current = matrix[x][q - 1];
matrix[x][q - 1] = previous;
previous = current;
}
q--;
if (rw < p) {
for (int x = q - 1; x >= cl; x--) {
current = matrix[p - 1][x];
matrix[p - 1][x] = previous;
previous = current;
}
}
p--;
if (cl < q) {
for (int x = p - 1; x >= rw; x--) {
current = matrix[x][cl];
matrix[x][cl] = previous;
previous = current;
}
}
cl++;
}
for (int x = 0; x < r; x++) {
for (int y = 0; y < c; y++)
System.out.print(matrix[x][y] + " ");
System.out.print("\n");
}
}
public static void main(String[] args)
{
int b[][] = { { 5, 6, 7, 8 },
{ 1, 2, 3, 4 },
{ 0, 15, 6, 5 },
{ 3, 1, 2, 12 } };
rotate_matrix(r, c, b);
}
}