12 | 5 | sharafat

solutions/sharafat/12/1.c

@@ -1,6 +1,17 @@
 #include <stdio.h>
 
+void print_array(int *array, int size)
+{
+    for (int i = size - 1; i >= 0; i--)
+    {
+        printf("%d ", *(array + i));
+    }
+    printf("\n");
+}
+
 int main()
 {
-
+    int array[10] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 0};
+    print_array(array, 10);
+    return 0;
 }

solutions/sharafat/12/2.c

@@ -0,0 +1,29 @@
+#include <stdio.h>
+#include <math.h>
+
+void calculate_roots(float a, float b, float c, float *x1, float *x2)
+{
+    float discriminant = b * b - 4 * a * c;
+    if (discriminant < 0)
+    {
+        *x1 = *x2 = 0;
+    }
+    else if (discriminant == 0)
+    {
+        *x1 = *x2 = -b / (2 * a);
+    }
+    else
+    {
+        *x1 = (-b + sqrt(discriminant)) / (2 * a);
+        *x2 = (-b - sqrt(discriminant)) / (2 * a);
+    }
+}
+
+int main()
+{
+    float a, b, c, x1, x2;
+    printf("Enter a, b, c: ");
+    scanf("%f %f %f", &a, &b, &c);
+    calculate_roots(a, b, c, &x1, &x2);
+    printf("x1 = %f, x2 = %f\n", x1, x2);
+}

solutions/sharafat/12/3.c

@@ -0,0 +1,35 @@
+#include <stdio.h>
+
+void fill_array(int *array, int size, int value)
+{
+    int temp;
+    int i;
+    for (i = 0; i < size; i++)
+    {
+        if ( array[i] > value )
+        {
+            temp = array[i];
+            array[i] = value;
+            break;
+        }
+    }
+    for (i = i + 1; i < size; i++)
+    {
+        int temp2 = array[i];
+        array[i] = temp;
+        temp = temp2;
+    }
+
+}
+
+int main()
+{
+    int array[10] = {1, 2, 3, 5, 6, 7, 8};
+    int remaining = 4;
+
+    fill_array(array, 10, remaining);
+    for (int i = 0; i < 10; i++)
+    {
+        printf("%d ", array[i]);
+    }
+}

solutions/sharafat/12/4.c

@@ -0,0 +1,56 @@
+#include <stdio.h>
+
+void matrix_addition(int *matrix_one, int *matrix_two, int row, int col, int *matrix_sum)
+{
+    for (int i = 0; i < row; i++)
+    {
+        for (int j = 0; j < col; j++)
+        {
+            *(matrix_sum + i * col + j ) = *(matrix_one + i * col + j) + *(matrix_two + i * col + j);
+        }
+    }
+    return;
+}
+
+int main()
+{
+    int row, col;
+    printf("Enter row and column: ");
+    scanf("%d %d", &row, &col);
+
+    int matrix_one[row][col];
+    int matrix_two[row][col];
+
+    printf("Row: %d, Col: %d\n", row, col);
+
+    printf("Enter elements of the first matrix:\n");
+    for (int i = 0 ; i < row; i++)
+    {
+        for (int j = 0; j < col; j++)
+        {
+            scanf("%d", &matrix_one[i][j]);
+        }
+    }
+
+    printf("Enter elements of the second matrix:\n");
+    for (int i = 0 ; i < row; i++)
+    {
+        for (int j = 0; j < col; j++)
+        {
+            scanf("%d", &matrix_two[i][j]);
+        }
+    }
+
+    int matrix_sum[row][col];
+    matrix_addition((int *)matrix_one, (int *)matrix_two, row, col, (int *)matrix_sum);
+
+    printf("Sum of the two matrices:\n");
+    for (int i = 0 ; i < row; i++)
+    {
+        for (int j = 0; j < col; j++)
+        {
+            printf("%d ", matrix_sum[i][j]);
+        }
+        printf("\n");
+    }
+}

solutions/sharafat/12/5.c

@@ -0,0 +1,38 @@
+#include <stdio.h>
+
+void remove_character(char *string, char what_to_remove)
+{
+    int i = 0;
+    while (string[i] != '\0')
+    {
+        if (string[i] == what_to_remove)
+        {
+            int j = i;
+            while (string[j] != '\0')
+            {
+                string[j] = string[j + 1];
+                j++;
+            }
+        }
+        else
+        {
+            i++;
+        }
+    }
+}
+
+int main()
+{
+    char string[100];
+    char what_to_remove;
+
+    printf("Enter a string: ");
+    scanf("%s", string);
+
+    printf("Enter a character to remove: ");
+    scanf(" %c", &what_to_remove);
+
+    remove_character(string, what_to_remove);
+
+    printf("Result: %s\n", string);
+}