Search a 2D Matrix

class Solution {
    public boolean searchMatrix(int[][] matrix, int target) {
        if(matrix.length == 0) return false;
        int rows = matrix.length;
        int cols = matrix[0].length;
        
        int left = 0;
        int right = rows*cols-1;
        
        while(left <= right){
            int mid = left + (right-left)/2; // calculates the mid point of 1D array.
            int midElement = matrix[mid/cols][mid%cols]; // converting midpoint of 1D array to 2D array
            if(midElement == target) return true;
            if(midElement < target) left = mid+1;
            else right = mid-1;
        }
        return false;
    }
}

Similar codes

0 vote304 views1 answer
Spring boot procfile run profile
Java Spring
3 votes255 views2 answers
How to get SHA fingerprint from jks file?
Java
1 vote256 views1 answer
Frequency of number in java using hashmap using getordefault
Java
4 votes247 views2 answers
Java round to nearest 5
Java
0 vote258 views1 answer
Force_dark_auto android webview
Java
0 vote254 views1 answer
Como apanhar caracter de uma string em java
Java
0 vote246 views1 answer
Alphabet n vowelin java
Java
0 vote256 views1 answer
Mergesort parallelization using Spark
Java
3 votes245 views1 answer
Space in java
Java
0 vote271 views1 answer
JAVA_HOME is not defined correctly.
Java