In this tutorial, we will discuss the concept of C program to find largest and second largest elements in Array.
In this topic, we will learn how to find the largest and second largest elements of array elements in C programming language
This program gets “n” number of elements and Enter the elements of the array as input from the user. then, this program finds and displays the largest and second largest elements from the array using for loop and if statements.
In this programs, we can see step by step procedure for completion of the program.
Program 1
#include <stdio.h> #include <stdlib.h> int main() { int size,i,arr[50];//variable declaration for size of array int large=0, secondLarge=0; printf("Enter the number of elements in array: "); scanf("%d",&size);//taking input from user for number of elements in array for(i=0; i<size; i++){ printf("Enter the array element "); printf("%d :",(i+1)); scanf("%d",&arr[i]);//Taking input for array elements if(large<arr[i]){ secondLarge=large; large=arr[i]; } else if(secondLarge<arr[i]){ secondLarge=arr[i]; } } printf("\n%d is the largest nunber\n",large); printf("%d is te second largest nunber",secondLarge); //display result on the screen getch(); return 0; }
When the above code is executed, it produces the following results
Enter the number of elements in array: 6 Enter the array element 1: 67 Enter the array element 1: 89 Enter the array element 1: 78 Enter the array element 1: 54 Enter the array element 1: 23 Enter the array element 1: 42 89 is the largest number 78 is the second largest number
Program 2
#include <stdio.h> #include <stdlib.h> int main() { int size,i; float arr[50];//variable declaration for size of array float large=0.0, secondLarge=0.0;//declare and initialize large and second large number printf("Enter the number of element in te array: "); scanf("%d",&size);//taking input from user for no of elements in array for(i=0; i<size; i++){ printf("Enter the array element "); printf("%d: ",(i+1)); scanf("%f",&arr[i]);//taking input fron user to array elements if(large<arr[i]){ secondLarge=large; large=arr[i]; } else if(secondLarge<arr[i]){ secondLarge=arr[i]; } } printf("\n%.2f is the largest nunber\n",large); printf("%.2f is the second largest nunber",secondLarge); //display result on the screen getch(); return 0; }
When the above code is executed, it produces the following results
Enter the number of elements in the array: 6 Enter the array element 1: 45.3 Enter the array element 2: 89.67 Enter the array element 1: 12.45 Enter the array element 1: 76.32 Enter the array element 1: 45.67 Enter the array element 1: 65.32 89.67 is the largest number 76.32 is the second largest number
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