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class Solution {
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  public boolean isBoomerang(int[][] points) {
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    double a, b, c, d, area;
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    a = points[0][0] - points[1][0];
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    b = points[1][0] - points[2][0];
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    c = points[0][1] - points[1][1];
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    d = points[1][1] - points[2][1];
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    area = 0.5 * ((a * d) - (b * c));
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    return area != 0;
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  }
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}