length of 2d array c++
int rows = sizeof(arr) / sizeof(arr[0]); // returns rows
int col = sizeof(arr[0]) / sizeof(int); // returns collength of 2d array c++
int rows = sizeof(arr) / sizeof(arr[0]); // returns rows
int col = sizeof(arr[0]) / sizeof(int); // returns colhow to find the largest number in a 2d array java
// Assume the 2D array is holding int values
// Method for finding largest number in array given below
// if 2D array is null or empty, return min int value
public int findLargest(int[][] mat) {
int max = Integer.MIN_VALUE; // running max value
if(mat == null || mat.length == 0) {
return max; // return min int if mat is null or empty
}
final int ROW = mat.length; // nb of rows in 2D array
final int COL = mat[0].length; // nb of cols in 2D array
// Iterate over elements to find largest value
for(int row=0; row < ROW; row++) {
for(int col=0; col < COL; col++) {
if(mat[row][col] > max) {
max = mat[row][col]; // update running max if larger val is found
}
}
}
return max;
}Copyright © 2021 Codeinu
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