How does a C program to find largest number using dynamic memory allocation work?

 Courtesy: Programiz.com


In the program, we have asked the user to enter the total number of elements which is stored in the variable n. Then, we have allocated memory for n number of double values.

// Allocating memory for n double values
data = (double *)calloc(n, sizeof(double));

Then, we used a for loop to take n number of data from the user.

// Storing elements
for (int i = 0; i < n; ++i) {
  printf("Enter Number%d: ", i + 1);
  scanf("%lf", data + i);
}

Finally, we used another for loop to compute the largest number.

// Computing the largest number
for (int i = 1; i < n; ++i) {
  if (*data < *(data + i))
    *data = *(data + i);
  }
}

Note: Instead of calloc(), it's also possible to solve this problem using the malloc() function.

Comments

Post a Comment

Popular posts from this blog

C program to read and display book information using structure

Program: #include<stdio.h> struct book {     char title[40];     int pages;     float price;     int ratings; }; int main() {     struct book book1;     printf("Enter Book Title: ");     gets(book1.title);     printf("Enter Book Pages:");     scanf("%d", &book1.pages);     printf("Enter Book Price:");     scanf("%f", &book1.price);     printf("Enter Book Ratings:");     scanf("%d", &book1.ratings);          printf("\nBook using simple structure variable.\n");     printf("Book Title: %s\n", book1.title);     printf("Book Pages: %d\n", book1.pages);     printf("Book Price: %f\n", book1.price);     printf("Book Ratings: %i\n", book1.ratings);  } Output: Enter Book Title: Life of pi Enter Book Pages:401 Enter Book Price:320 Enter Book Ratings:4 Book using simple structure variable. Book Title: Life of pi Book Pages: 401 Book Price: 320.000000 Book Rating
Read more

Count positive, negative and zero values in an array

Program: #include <stdio.h> void main() {     int num[10],i,pos=0,neg=0,zero=0;     for(i=0;i<10;i++)     {         printf("Enter array element: ");         scanf("%d",&num[i]);         if(num[i]>0)             pos=pos+1;         else             if(num[i]<0)                 neg=neg+1;             else                 zero=zero+1;     }     printf("Positive=%d, Negative=%d, Zero=%d",pos,neg,zero); } Output: Enter array element: -40 Enter array element: -30 Enter array element: -20 Enter array element: -10 Enter array element: 0 Enter array element: 10 Enter array element: 20 Enter array element: 30 Enter array element: 40 Enter array element: 50 Positive=5, Negative=4, Zero=1 Drafted on 🌏 by, Jal ☮ peace
Read more

Maximum value from array

Program: #include <stdio.h> void main() {     int arr[10]={10,20,30,40,50,60,70,80,90,100};     int i,max;          max=arr[0];          for(i=1;i<10;i++)     {         if(arr[i]>max)             max=arr[i];     }          printf("Maximum number is: %d",max); } Output: Maximum number is: 100 Drafted on 🌏 by, Jal ☮ peace
Read more