2D Array

Author: khatrijiraj

2dArray.cpp

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+#include <iostream>
+using namespace std;
+
+/* basic funtion to search a element in 2d array */
+bool search(int arr[][3], int target, int row, int col) {
+    for (int i = 0; i < row; i++) {
+        for (int j = 0; j < col; j++) {
+            if (arr[i][j] == target) {
+                return true;
+            }
+        }
+    }
+    return false;
+}
+
+void rowSum(int arr[][3], int row, int col) {
+    int sum = 0;
+    for (int i = 0; i < row; i++) {
+        int sum = 0;
+        for (int j = 0; j < col; j++) {
+            sum += arr[i][j];
+        }
+        cout << "Sum: " << sum << endl;
+    }
+}
+
+void largestRowSum(int arr[][3], int row, int col) {
+    int sum = 0;
+    int max = 0;
+    int rowIndex = 0;
+    for (int i = 0; i < row; i++) {
+        int sum = 0;
+        for (int j = 0; j < col; j++) {
+            sum += arr[i][j];
+        }
+        if (sum > max) {
+            max = sum;
+            rowIndex = i;
+        }
+    }
+    cout << "Max sum " << max << " at index: " << rowIndex;
+}
+
+int main() {
+    /* create a 2d array */
+    // int arr[3][3];
+    // int arr[3][3] = {1, 2, 3, 4, 5, 6, 7, 8, 9};
+    int arr[3][3] = {{1, 11, 111}, {2, 22, 222}, {3, 33, 333}};
+
+    /* input 2d array */
+    /* for (int i = 0; i < 3; i++) {
+        for (int j = 0; j < 3; j++) {
+            cout << "Enter element at (" << i << ", " << j << "): ";
+            cin >> arr[i][j];
+        }
+    } */
+
+    /* output 2d array */
+    cout << "2D Array:- \n";
+    for (int i = 0; i < 3; i++) {
+        for (int j = 0; j < 3; j++) {
+            cout << arr[i][j] << "\t";
+        }
+        cout << endl;
+    }
+
+    /* searching */
+    if (search(arr, 111, 3, 3)) {
+        cout << "Found" << endl;
+    } else {
+        cout << "Not found" << endl;
+    }
+
+    /* sum of rows */
+    cout << "Sum of rows: " << endl;
+    rowSum(arr, 3, 3);
+
+    /* row with max sum */
+    cout << "Finding row with max sum: \n";
+    largestRowSum(arr, 3, 3);
+    return 0;
+}