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| int[][] array1 = new int[10][10]; array1[1][2] = 2; array1[4][3] = 5;
for (int i = 0;i<array1.length;i++){ for (int j = 0;j<array1[i].length;j++){ System.out.print(array1[i][j] + " "); if (j == array1[i].length-1) { System.out.println(); } } }
int sum = 0; for(int i = 0;i < array1.length; i++){ for(int j = 0;j < array1[i].length; j++){ if(array1[i][j] != 0){ sum++; } } }
int[][] array2 = new int[sum+1][3];
array2[0][0] = array1.length; array2[0][1] = array1[0].length; array2[0][2] = sum;
int count = 0; for(int i = 0;i < array1.length; i++){ for(int j = 0;j < array1[i].length; j++){ if(array1[i][j] != 0){ count++; array2[count][0] = i; array2[count][1] = j; array2[count][2] = array1[i][j]; } } }
for (int i = 0;i<array2.length;i++){ for (int j = 0;j<array2[i].length;j++){ System.out.print(array2[i][j] + " "); if (j == array2[i].length-1) { System.out.println(); } } }
int[][] array3 = new int[array2[0][0]][array2[0][1]];
for(int i = 1;i < array2.length;i++){ array3[array2[i][0]][array2[i][1]] = array2[i][2]; }
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