C Programming Language || Hands On Coding
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“Hands-on C programming language challenges for beginners. Learn building logic by solving programs.
Owner: @Pradeep_saii”
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12 822
Obunachilar
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-21030 kunlar
Postlar arxiv
💻 Matrix Multiplication Validation
#include <stdio.h>
int main() {
int rowsA, colsA, rowsB, colsB;
printf("Enter the number of rows for matrix A: ");
scanf("%d", &rowsA);
printf("Enter the number of columns for matrix A: ");
scanf("%d", &colsA);
printf("Enter the number of rows for matrix B: ");
scanf("%d", &rowsB);
printf("Enter the number of columns for matrix B: ");
scanf("%d", &colsB);
if (colsA == rowsB) {
printf("Matrix multiplication is possible.n");
} else {
printf("Matrix multiplication is not possible.n");
}
return 0;
}
Input: 2 Input: 3 Input: 3 Input: 4 Output: Enter the number of rows for matrix A: Enter the number of columns for matrix A: Enter the number of rows for matrix B: Enter the number of columns for matrix B: Matrix multiplication is possible. Input: 2 Input: 3 Input: 4 Input: 5 Output: Enter the number of rows for matrix A: Enter the number of columns for matrix A: Enter the number of rows for matrix B: Enter the number of columns for matrix B: Matrix multiplication is not possible.
💻 Find Minimum Element in Matrix
#include <stdio.h>
#include <limits.h>
int main() {
int rows, cols, i, j;
printf("Enter the number of rows: ");
scanf("%d", &rows);
printf("Enter the number of columns: ");
scanf("%d", &cols);
int matrix[rows][cols];
printf("Enter the elements of the matrix:n");
for (i = 0; i < rows; i++) {
for (j = 0; j < cols; j++) {
scanf("%d", &matrix[i][j]);
}
}
int min = INT_MAX;
for (i = 0; i < rows; i++) {
for (j = 0; j < cols; j++) {
if (matrix[i][j] < min) {
min = matrix[i][j];
}
}
}
printf("Minimum element in the matrix is: %dn", min);
return 0;
}
Input: 2 Input: 3 Input: 1 Input: 2 Input: 3 Input: 4 Input: 5 Input: 6 Output: Minimum element in the matrix is: 1
💻 Find Maximum Element in Matrix
#include <stdio.h>
int main() {
int rows, cols;
printf("Enter the number of rows: ");
scanf("%d", &rows);
printf("Enter the number of columns: ");
scanf("%d", &cols);
int matrix[rows][cols];
printf("Enter the elements of the matrix:n");
for (int i = 0; i < rows; i++) {
for (int j = 0; j < cols; j++) {
scanf("%d", &matrix[i][j]);
}
}
int max = matrix[0][0];
for (int i = 0; i < rows; i++) {
for (int j = 0; j < cols; j++) {
if (matrix[i][j] > max) {
max = matrix[i][j];
}
}
}
printf("Maximum element in the matrix is: %dn", max);
return 0;
}
Input: 2 Input: 3 Input: 1 Input: 2 Input: 3 Input: 4 Input: 5 Input: 6 Output: Maximum element in the matrix is: 6 Input: 3 Input: 2 Input: -1 Input: -2 Input: -3 Input: -4 Input: -5 Input: -6 Output: Maximum element in the matrix is: -1
💻 Find Row Sum and Column Sum
#include <stdio.h>
int main() {
int rows, cols;
printf("Enter the number of rows: ");
scanf("%d", &rows);
printf("Enter the number of columns: ");
scanf("%d", &cols);
int matrix[rows][cols];
printf("Enter the elements of the matrix:n");
for (int i = 0; i < rows; i++) {
for (int j = 0; j < cols; j++) {
scanf("%d", &matrix[i][j]);
}
}
printf("Row Sums:n");
for (int i = 0; i < rows; i++) {
int rowSum = 0;
for (int j = 0; j < cols; j++) {
rowSum += matrix[i][j];
}
printf("Row %d: %dn", i + 1, rowSum);
}
printf("Column Sums:n");
for (int j = 0; j < cols; j++) {
int colSum = 0;
for (int i = 0; i < rows; i++) {
colSum += matrix[i][j];
}
printf("Column %d: %dn", j + 1, colSum);
}
return 0;
}
Input: 2 Input: 3 Input: 1 Input: 2 Input: 3 Input: 4 Input: 5 Input: 6 Output: Enter the number of rows: Enter the number of columns: Enter the elements of the matrix: Row Sums: Row 1: 6 Row 2: 15 Column Sums: Column 1: 5 Column 2: 7 Column 3: 9
💻 Check if Matrix is Identity Matrix
#include <stdio.h>
#include <stdbool.h>
int main() {
int rows, cols;
printf("Enter the number of rows: ");
scanf("%d", &rows);
printf("Enter the number of columns: ");
scanf("%d", &cols);
int matrix[rows][cols];
printf("Enter the elements of the matrix:n");
for (int i = 0; i < rows; i++) {
for (int j = 0; j < cols; j++) {
scanf("%d", &matrix[i][j]);
}
}
bool isIdentity = true;
if (rows != cols) {
isIdentity = false;
} else {
for (int i = 0; i < rows; i++) {
for (int j = 0; j < cols; j++) {
if (i == j) {
if (matrix[i][j] != 1) {
isIdentity = false;
break;
}
} else {
if (matrix[i][j] != 0) {
isIdentity = false;
break;
}
}
}
if (!isIdentity) {
break;
}
}
}
if (isIdentity) {
printf("The matrix is an Identity Matrix.n");
} else {
printf("The matrix is not an Identity Matrix.n");
}
return 0;
}
Input: 3 Input: 3 Input: 1 Input: 0 Input: 0 Input: 0 Input: 1 Input: 0 Input: 0 Input: 0 Input: 1 Output: The matrix is an Identity Matrix. Input: 2 Input: 2 Input: 1 Input: 0 Input: 0 Input: 2 Output: The matrix is not an Identity Matrix. Input: 2 Input: 3 Input: 1 Input: 2 Input: 3 Input: 4 Input: 5 Input: 6 Output: The matrix is not an Identity Matrix.
💻 Check if Matrix is Symmetric
#include <stdio.h>
#include <stdbool.h>
int main() {
int rows, cols;
printf("Enter the number of rows: ");
scanf("%d", &rows);
printf("Enter the number of columns: ");
scanf("%d", &cols);
if (rows != cols) {
printf("Matrix is not square, so it cannot be symmetric.n");
return 0;
}
int matrix[rows][cols];
printf("Enter the elements of the matrix:n");
for (int i = 0; i < rows; i++) {
for (int j = 0; j < cols; j++) {
scanf("%d", &matrix[i][j]);
}
}
bool isSymmetric = true;
for (int i = 0; i < rows; i++) {
for (int j = 0; j < cols; j++) {
if (matrix[i][j] != matrix[j][i]) {
isSymmetric = false;
break;
}
}
if (!isSymmetric) {
break;
}
}
if (isSymmetric) {
printf("The matrix is symmetric.n");
} else {
printf("The matrix is not symmetric.n");
}
return 0;
}
Input: 3 Input: 3 Input: 1 Input: 2 Input: 3 Input: 2 Input: 4 Input: 5 Input: 3 Input: 5 Input: 6 Output: The matrix is symmetric. Input: 2 Input: 3 Output: Matrix is not square, so it cannot be symmetric. Input: 2 Input: 2 Input: 1 Input: 2 Input: 3 Input: 4 Output: The matrix is not symmetric.
💻 Sum of Secondary Diagonal Elements
#include <stdio.h>
int main() {
int rows, cols;
printf("Enter the number of rows: ");
scanf("%d", &rows);
printf("Enter the number of columns: ");
scanf("%d", &cols);
if (rows != cols) {
printf("Matrix must be square for secondary diagonal sum.n");
return 1;
}
int matrix[rows][cols];
printf("Enter the elements of the matrix:n");
for (int i = 0; i < rows; i++) {
for (int j = 0; j < cols; j++) {
scanf("%d", &matrix[i][j]);
}
}
int sum = 0;
for (int i = 0; i < rows; i++) {
sum += matrix[i][cols - 1 - i];
}
printf("Sum of secondary diagonal elements: %dn", sum);
return 0;
}
Input: 3 Input: 3 Input: 1 Input: 2 Input: 3 Input: 4 Input: 5 Input: 6 Input: 7 Input: 8 Input: 9 Output: Sum of secondary diagonal elements: 15 Input: 2 Input: 4 Output: Matrix must be square for secondary diagonal sum.
💻 Sum of Main Diagonal Elements
#include <stdio.h>
int main() {
int rows, cols, i, j, sum = 0;
printf("Enter the number of rows: ");
scanf("%d", &rows);
printf("Enter the number of columns: ");
scanf("%d", &cols);
if (rows != cols) {
printf("Matrix must be square to calculate the sum of the main diagonal.n");
return 1;
}
int matrix[rows][cols];
printf("Enter the elements of the matrix:n");
for (i = 0; i < rows; i++) {
for (j = 0; j < cols; j++) {
scanf("%d", &matrix[i][j]);
}
}
for (i = 0; i < rows; i++) {
sum = sum + matrix[i][i]; // Add the diagonal element to sum
}
printf("Sum of main diagonal elements: %dn", sum);
return 0;
}
Input: 3 Input: 3 Input: 1 Input: 2 Input: 3 Input: 4 Input: 5 Input: 6 Input: 7 Input: 8 Input: 9 Output: Sum of main diagonal elements: 15 Input: 2 Input: 4 Output: Matrix must be square to calculate the sum of the main diagonal.
💻 Transpose of a Matrix
#include <stdio.h>
int main() {
int rows, cols, i, j;
printf("Enter the number of rows: ");
scanf("%d", &rows);
printf("Enter the number of columns: ");
scanf("%d", &cols);
int matrix[rows][cols], transpose[cols][rows];
printf("Enter the elements of the matrix:n");
for (i = 0; i < rows; i++) {
for (j = 0; j < cols; j++) {
scanf("%d", &matrix[i][j]);
}
}
for (i = 0; i < rows; i++) {
for (j = 0; j < cols; j++) {
transpose[j][i] = matrix[i][j];
}
}
printf("Transpose of the matrix:n");
for (i = 0; i < cols; i++) {
for (j = 0; j < rows; j++) {
printf("%d ", transpose[i][j]);
}
printf("n");
}
return 0;
}
Input: 2 Input: 3 Input: 1 Input: 2 Input: 3 Input: 4 Input: 5 Input: 6 Output: Enter the number of rows: Enter the number of columns: Enter the elements of the matrix: Transpose of the matrix: 1 4 2 5 3 6
💻 Multiply Two Matrices
#include <stdio.h>
int main() {
int row1, col1, row2, col2;
printf("Enter the number of rows and columns for the first matrix: ");
scanf("%d %d", &row1, &col1);
printf("Enter the number of rows and columns for the second matrix: ");
scanf("%d %d", &row2, &col2);
if (col1 != row2) {
printf("Matrices cannot be multiplied.n");
return 1;
}
int matrix1[row1][col1], matrix2[row2][col2], result[row1][col2];
int i, j, k;
printf("Enter the elements of the first matrix:n");
for (i = 0; i < row1; i++) {
for (j = 0; j < col1; j++) {
scanf("%d", &matrix1[i][j]);
}
}
printf("Enter the elements of the second matrix:n");
for (i = 0; i < row2; i++) {
for (j = 0; j < col2; j++) {
scanf("%d", &matrix2[i][j]);
}
}
for (i = 0; i < row1; i++) {
for (j = 0; j < col2; j++) {
result[i][j] = 0;
for (k = 0; k < col1; k++) {
result[i][j] += matrix1[i][k] * matrix2[k][j];
}
}
}
printf("Resultant matrix:n");
for (i = 0; i < row1; i++) {
for (j = 0; j < col2; j++) {
printf("%d ", result[i][j]);
}
printf("n");
}
return 0;
}
Input: 2 2 Input: 2 2 Input: 1 2 Input: 3 4 Input: 5 6 Input: 7 8 Output: Enter the number of rows and columns for the first matrix: Enter the number of rows and columns for the second matrix: Enter the elements of the first matrix: Enter the elements of the second matrix: Resultant matrix: 19 22 43 50
💻 Subtract Two Matrices
#include <stdio.h>
int main() {
int rows, cols;
printf("Enter the number of rows: ");
scanf("%d", &rows);
printf("Enter the number of columns: ");
scanf("%d", &cols);
int matrix1[rows][cols], matrix2[rows][cols], result[rows][cols];
printf("Enter elements of the first matrix:n");
for (int i = 0; i < rows; i++) {
for (int j = 0; j < cols; j++) {
scanf("%d", &matrix1[i][j]);
}
}
printf("Enter elements of the second matrix:n");
for (int i = 0; i < rows; i++) {
for (int j = 0; j < cols; j++) {
scanf("%d", &matrix2[i][j]);
}
}
// Subtract the matrices
for (int i = 0; i < rows; i++) {
for (int j = 0; j < cols; j++) {
result[i][j] = matrix1[i][j] - matrix2[i][j];
}
}
printf("Resultant matrix after subtraction:n");
for (int i = 0; i < rows; i++) {
for (int j = 0; j < cols; j++) {
printf("%d ", result[i][j]);
}
printf("n");
}
return 0;
}
Input: 2 Input: 2 Input: 1 Input: 2 Input: 3 Input: 4 Input: 5 Input: 6 Input: 7 Input: 8 Output: Enter the number of rows: Enter the number of columns: Enter elements of the first matrix: Enter elements of the second matrix: Resultant matrix after subtraction: -4 -4 -4 -4
💻 Add Two Matrices
#include <stdio.h>
int main() {
int rows, cols;
printf("Enter the number of rows: ");
scanf("%d", &rows);
printf("Enter the number of columns: ");
scanf("%d", &cols);
int matrix1[rows][cols], matrix2[rows][cols], sum[rows][cols];
printf("Enter elements of the first matrix:n");
for (int i = 0; i < rows; i++) {
for (int j = 0; j < cols; j++) {
scanf("%d", &matrix1[i][j]);
}
}
printf("Enter elements of the second matrix:n");
for (int i = 0; i < rows; i++) {
for (int j = 0; j < cols; j++) {
scanf("%d", &matrix2[i][j]);
}
}
for (int i = 0; i < rows; i++) {
for (int j = 0; j < cols; j++) {
sum[i][j] = matrix1[i][j] + matrix2[i][j];
}
}
printf("Sum of the matrices:n");
for (int i = 0; i < rows; i++) {
for (int j = 0; j < cols; j++) {
printf("%d ", sum[i][j]);
}
printf("n");
}
return 0;
}
Input: 2 Input: 3 Input: 1 Input: 2 Input: 3 Input: 4 Input: 5 Input: 6 Input: 7 Input: 8 Input: 9 Input: 10 Input: 11 Input: 12 Output: Enter the number of rows: Enter the number of columns: Enter elements of the first matrix: Enter elements of the second matrix: Sum of the matrices: 8 10 12 14 16 18
💻 Count Occurrences of Element in Array
#include <stdio.h>
int main() {
int arr[100];
int n, i, target, count = 0;
printf("Enter the number of elements in the array: ");
scanf("%d", &n);
printf("Enter the elements of the array:n");
for (i = 0; i < n; i++) {
scanf("%d", &arr[i]);
}
printf("Enter the element to count: ");
scanf("%d", &target);
for (i = 0; i < n; i++) {
if (arr[i] == target) {
count++;
}
}
printf("The element %d occurs %d times in the array.n", target, count);
return 0;
}
Input: 5 Input: 1 Input: 2 Input: 2 Input: 3 Input: 2 Input: 2 Output: Enter the number of elements in the array: Enter the elements of the array: Enter the element to count: The element 2 occurs 3 times in the array.
💻 Find All Prime Numbers in Array
#include <stdio.h>
#include <stdbool.h>
bool isPrime(int n) {
if (n <= 1) return false;
for (int i = 2; i * i <= n; i++) {
if (n % i == 0) return false;
}
return true;
}
int main() {
int size;
printf("Enter the size of the array: ");
scanf("%d", &size);
int arr[size];
printf("Enter the elements of the array: ");
for (int i = 0; i < size; i++) {
scanf("%d", &arr[i]);
}
printf("Prime numbers in the array are: ");
for (int i = 0; i < size; i++) {
if (isPrime(arr[i])) {
printf("%d ", arr[i]);
}
}
printf("n");
return 0;
}
Input: 5 Input: 1 2 3 4 5 Output: Enter the size of the array: Enter the elements of the array: Prime numbers in the array are: 2 3 5
💻 Split Array into Even and Odd Numbers
#include <stdio.h>
int main() {
int arr[100];
int even[100];
int odd[100];
int n, i, even_count = 0, odd_count = 0;
printf("Enter the number of elements in the array: ");
scanf("%d", &n);
printf("Enter the elements of the array:n");
for (i = 0; i < n; i++) {
scanf("%d", &arr[i]);
}
for (i = 0; i < n; i++) {
if (arr[i] % 2 == 0) {
even[even_count] = arr[i];
even_count++;
} else {
odd[odd_count] = arr[i];
odd_count++;
}
}
printf("Even numbers in the array are:n");
for (i = 0; i < even_count; i++) {
printf("%d ", even[i]);
}
printf("n");
printf("Odd numbers in the array are:n");
for (i = 0; i < odd_count; i++) {
printf("%d ", odd[i]);
}
printf("n");
return 0;
}
Input: 5 Input: 1 Input: 2 Input: 3 Input: 4 Input: 5 Output: Enter the number of elements in the array: Enter the elements of the array: Even numbers in the array are: 2 4 Odd numbers in the array are: 1 3 5
💻 Find Mode of Array
#include <stdio.h>
int main() {
int arr[100];
int n, i, j;
printf("Enter the number of elements in the array: ");
scanf("%d", &n);
printf("Enter the elements of the array:n");
for (i = 0; i < n; i++) {
scanf("%d", &arr[i]);
}
int mode = arr[0];
int maxCount = 1;
for (i = 0; i < n; i++) {
int count = 1;
for (j = i + 1; j < n; j++) {
if (arr[i] == arr[j]) {
count++;
}
}
if (count > maxCount) {
maxCount = count;
mode = arr[i];
}
}
printf("Mode of the array is: %dn", mode);
return 0;
}
Input: 5 Input: 1 Input: 2 Input: 2 Input: 3 Input: 2 Output: Mode of the array is: 2 Input: 7 Input: 1 Input: 2 Input: 3 Input: 4 Input: 5 Input: 6 Input: 7 Output: Mode of the array is: 1 Input: 6 Input: 5 Input: 5 Input: 5 Input: 1 Input: 2 Input: 3 Output: Mode of the array is: 5 Input: 4 Input: 2 Input: 2 Input: 1 Input: 1 Output: Mode of the array is: 2
💻 Find Median of Array
#include <stdio.h>
#include <stdlib.h>
int main() {
int n;
printf("Enter the number of elements in the array: ");
scanf("%d", &n);
int arr[n];
printf("Enter the elements of the array:n");
for (int i = 0; i < n; i++) {
scanf("%d", &arr[i]);
}
// Sort the array (using bubble sort for simplicity)
for (int i = 0; i < n - 1; i++) {
for (int j = 0; j < n - i - 1; j++) {
if (arr[j] > arr[j + 1]) {
int temp = arr[j];
arr[j] = arr[j + 1];
arr[j + 1] = temp;
}
}
}
float median;
if (n % 2 == 0) {
// If the number of elements is even
median = (float)(arr[n / 2 - 1] + arr[n / 2]) / 2;
} else {
// If the number of elements is odd
median = (float)arr[n / 2];
}
printf("The median of the array is: %.2fn", median);
return 0;
}
Input: 5 Input: 1 Input: 2 Input: 3 Input: 4 Input: 5 Output: The median of the array is: 3.00 Input: 6 Input: 1 Input: 2 Input: 3 Input: 4 Input: 5 Input: 6 Output: The median of the array is: 3.50
💻 Find Product of All Elements in Array
#include <stdio.h>
int main() {
int n, i;
long long product = 1;
printf("Enter the number of elements in the array: ");
scanf("%d", &n);
int arr[n];
printf("Enter the elements of the array:n");
for (i = 0; i < n; i++) {
scanf("%d", &arr[i]);
}
for (i = 0; i < n; i++) {
product *= arr[i];
}
printf("Product of all elements in the array = %lldn", product);
return 0;
}
Input: 5 Input: 1 Input: 2 Input: 3 Input: 4 Input: 5 Output: Product of all elements in the array = 120
💻 Find Cumulative Sum of Array
#include <stdio.h>
int main() {
int n;
printf("Enter the size of the array: ");
scanf("%d", &n);
int arr[n];
printf("Enter the elements of the array:n");
for (int i = 0; i < n; i++) {
scanf("%d", &arr[i]);
}
int cumulative_sum[n];
cumulative_sum[0] = arr[0];
for (int i = 1; i < n; i++) {
cumulative_sum[i] = cumulative_sum[i - 1] + arr[i];
}
printf("Cumulative sum of the array:n");
for (int i = 0; i < n; i++) {
printf("%d ", cumulative_sum[i]);
}
printf("n");
return 0;
}
Input: 5 Input: 1 Input: 2 Input: 3 Input: 4 Input: 5 Output: Enter the size of the array: Enter the elements of the array: Cumulative sum of the array: 1 3 6 10 15
