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35 lines
844 B
35 lines
844 B
package class17;
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public class Code01_FindNumInSortedMatrix {
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public static boolean isContains(int[][] matrix, int K) {
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int row = 0;
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int col = matrix[0].length - 1;
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while (row < matrix.length && col > -1) {
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if (matrix[row][col] == K) {
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return true;
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} else if (matrix[row][col] > K) {
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col--;
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} else {
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row++;
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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[][] matrix = new int[][] { { 0, 1, 2, 3, 4, 5, 6 }, // 0
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{ 10, 12, 13, 15, 16, 17, 18 }, // 1
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{ 23, 24, 25, 26, 27, 28, 29 }, // 2
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{ 44, 45, 46, 47, 48, 49, 50 }, // 3
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{ 65, 66, 67, 68, 69, 70, 71 }, // 4
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{ 96, 97, 98, 99, 100, 111, 122 }, // 5
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{ 166, 176, 186, 187, 190, 195, 200 }, // 6
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{ 233, 243, 321, 341, 356, 370, 380 } // 7
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};
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int K = 233;
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System.out.println(isContains(matrix, K));
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}
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}
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