2-D Array Initialisation and Printing
#include <iostream>
using namespace std;
void printArray(int arr[][4], int r, int c) {
cout<<"Printing the Array : "<<endl;;
for (int i = 0; i < r; i++) {
for(int j=0;j<c;j++){
cout << arr[i][j]<< " ";
}
cout<<endl;
}
}
int main() {
// initialising a 2-D Array;
int arr[][4]={
{1,2,3,4},
{5,6,7,8},
{9,10,11,12},
{13,14,15,16}
};
printArray(arr,4,4);
return 0;
}
Linear Search in 2-D Array
#include <iostream>
using namespace std;
bool printArray(int arr[][4], int r, int c, int target) {
cout<<"Searching for Target :: "<<endl;
for (int i = 0; i < r; i++) {
for(int j=0;j<c;j++){
if (arr[i][j]==target){
return true;
}
}
}
return false;
}
int main() {
// initialising a 2-D Array;
int arr[][4]={
{1,2,3,4},
{5,6,7,8},
{9,10,11,12},
{13,14,15,16}
};
bool found=printArray(arr,4,4,3);
if(found){
cout<< "Element Found"<<endl;
}
else{
cout<<"Not Found "<<endl;
}
return 0;
}
Maximum and Minimum in 2-D Array
#include <iostream>
#include <limits.h>
using namespace std;
int findMax(int arr[][4], int r, int c) {
int max = INT_MIN;
for (int i = 0; i < r; i++) {
for (int j = 0; j < c; j++) {
if (arr[i][j] > max) {
max = arr[i][j];
}
}
}
return max;
}
int findMin(int arr[][4], int r, int c) {
int min = INT_MAX;
for (int i = 0; i < r; i++) {
for (int j = 0; j < c; j++) {
if (arr[i][j] < min) {
min = arr[i][j];
}
}
}
return min;
}
int main() {
// Initializing a 2D array
int arr[][4] = {
{1, 2, 3, 4},
{5, 6, 7, 8},
{9, 10, 11, 12},
{13, 14, 15, 16}
};
while (true) {
cout << "Enter your choice: \n1. Find Maximum element\n
2. Find Minimum element\n3. Exit\n";
char ch;
cin >> ch;
switch (ch) {
case '1':
cout << "The maximum element is: " << findMax(arr, 4, 4) << endl;
break;
case '2':
cout << "The minimum element is: " << findMin(arr, 4, 4) << endl;
break;
case '3':
cout << "Exiting..." << endl;
return 0;
default:
cout << "Please enter a valid number." << endl;
break;
}
}
return 0;
}
ROW-SUM | COLUMN-SUM | DIAGONAL-SUM
#include <iostream>
using namespace std;
void rowSum(int arr[][4], int r,int c) {
for (int i = 0; i < r; i++) {
int sum=0;
for(int j=0;j<c;j++){
sum+=arr[i][j];
}
cout <<"Sum of Row "<<i+1<<" is : "<<sum<<endl;
}
}
void colSum(int arr[][4], int r,int c) {
for (int j = 0; j < c; j++) {
int sum=0;
for(int i=0;i<r;i++){
sum+=arr[i][j];
}
cout <<"Sum of column "<<j+1<<" is :"<<sum<<endl;
}
}
void diagonalElementSum(int arr[][4],int r){
int sum=0;
for(int i=0;i<r;i++){
sum+=arr[i][i];
}
cout<<"Sum of the diagonal element is : "<<sum<<endl;
}
int main() {
int arr[][4] = {
{1, 2, 3, 4},
{5, 6, 7, 8},
{9, 10, 11, 12},
{13,14,15,16}
};
while (true) {
cout << "Enter your choice: \n1.Find Row-wise sum
\n2. Find Column-wise sum\n3. Sum of Diagonal Element
\n 4. Exit\n";
char ch;
cin >> ch;
switch (ch) {
case '1':
rowSum(arr, 4, 4);
break;
case '2':
colSum(arr, 4, 4);
break;
case '3':
diagonalElementSum(arr, 4);
break;
case '4':
cout << "Exiting..." << endl;
return 0;
default:
cout << "Please enter a valid number." << endl;
break;
}
}
return 0;
}
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