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29 lines
708 B
29 lines
708 B
2 years ago
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package class42;
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public class Problem_0335_SelfCrossing {
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public static boolean isSelfCrossing(int[] x) {
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if (x == null || x.length < 4) {
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return false;
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}
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if ((x.length > 3 && x[2] <= x[0] && x[3] >= x[1])
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|| (x.length > 4
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&& ((x[3] <= x[1] && x[4] >= x[2]) || (x[3] == x[1] && x[0] + x[4] >= x[2])))) {
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return true;
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}
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for (int i = 5; i < x.length; i++) {
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if (x[i - 1] <= x[i - 3] && ((x[i] >= x[i - 2])
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|| (x[i - 2] >= x[i - 4] && x[i - 5] + x[i - 1] >= x[i - 3] && x[i - 4] + x[i] >= x[i - 2]))) {
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return true;
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}
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}
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return false;
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}
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public static void main(String[] args) {
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int[] arr = { 2, 2, 3, 2, 2 };
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System.out.println(isSelfCrossing(arr));
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}
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}
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