Tutorial Gateway

  • C
  • C#
  • Java
  • Python
  • SQL
  • MySQL
  • Js
  • BI Tools
    • Informatica
    • Talend
    • Tableau
    • Power BI
    • SSIS
    • SSRS
    • SSAS
    • MDX
    • R Tutorial
    • Alteryx
    • QlikView
  • More
    • C Programs
    • C++ Programs
    • Python Programs
    • Java Programs

C Program to Find Smallest Number in an Array

by suresh

How to write a C Program to Find the Smallest Number in an Array (One Dimensional Array)?. And also the index position of the smallest number in an Array. Before going into this smallest number in an array in C article.

C Program to Find Smallest Number in an Array

In this C Program to find the smallest number in an array, we declared 1 One Dimensional Arrays a[] of size 10. We also declared i to iterate the Array elements, the Smallest variable to hold the smallest element in an Array. And the Position variable to hold the index position of the smallest element in an Array.

/*C Program to find Smallest Number in an Array*/

#include<stdio.h>
int main()
{
  int a[10], Size, i, Smallest, Position;
  
  printf("\nPlease Enter the size of an array \n");
  scanf("%d",&Size);

  printf("\nPlease Enter %d elements of an array: \n", Size);
  for(i=0; i<Size; i++)
   {
   	 scanf("%d",&a[i]);
   }   

  Smallest = a[0];
  for(i=1; i<Size; i++)
   {
    if(Smallest > a[i])
     {
       Smallest = a[i];
       Position = i;
	 }   
   }
  
  printf("\nSmallest element in an Array = %d", Smallest);
  printf("\nIndex position of the Smallest element = %d", Position);
  
  return 0;
}

OUTPUT

C Program to find Smallest Number in an Array

ANALYSIS

Within this C program to find the smallest number in an array, the below For loop helps to iterate each cell present in a[4] array. Condition inside the for loops (i < Size) will ensure the compiler, not to exceed the array limit. Refer to the Arrays in C article to understand the concept of Array size, index position, etc.

scanf statement inside the for loop will store the user entered values in every individual array element such as a[0], a[1], a[2], a[3]

for(i=0; i<Size; i++) 
{ 
   scanf("%d",&a[i]); 
}

In the next line of C smallest number in an array, We assigned a[0] value to the Smallest variable.

Smallest = a[0];

In the next C programming line, We have one more for loop. It is to iterate each element in an array. The If Statement finds the smallest Number in an Array by comparing each element against the Smallest value.

for(i=1; i<Size; i++) 
{ 
  if(Smallest > a[i]) 
  { 
    Smallest = a[i]; Position = i; 
  } 
}

From the above C Program to Find Smallest Number in an Array example screenshot, you can observe that the user inserted values are
a[4] = {10, 6, 98, 45}
Largest = a[0] = 10

First Iteration
The value of i will be 1, and the condition (i < 4) is True. So, it will start executing the statements inside the loop until the condition fails.

If statement (Smallest > a[i]) inside the for loop is True because (10 > 6)
Smallest = a[i] = a[1]
Smallest = 6
Position = 1

Second Iteration
i = 2, and the condition (2 < 4) is True.

If statement (Smallest > a[i]) inside the for loop is False because (6 < 98) so, the smallest value will not be updated. It means
Smallest = 6
Position = 1

C Program to Find Smallest Number in an Array – Third Iteration
i = 3, and the condition (3 < 4) is True.

If statement (Smallest > a[i]) inside the for loop is False because (6 < 45). So smallest value will not be updated. It means
Smallest = 6
Position = 1

Fourth Iteration
After incrementing the value of i, i will become 5. So, the condition (i < Size) will fail, and the compiler will exit from the loop.

The below printf statement is to print the Smallest Number inside an Array. In this C program example, it is 6.

printf("\nSmallest element in an Array = %d", Smallest);

The below printf statement used to print the Index Position of the Largest Number inside an Array. In this example, it occurs at position 2

printf("\nIndex position of the Smallest element = %d", Position);

Placed Under: C Programs

  • C Hello World
  • C Add Two numbers
  • C Armstrong Number Program
  • C Convert Celsius to Fahrenheit
  • C Convert Decimal to Binary
  • C Convert Decimal to Octal
  • C Convert CM to Meter and KM
  • C Convert KM to M, CM & MM
  • C Convert Fahrenheit to Celsius
  • C Compound Interest Program
  • C Count Digits in a Number
  • C Count Notes in an Amount
  • C Cube of a Number
  • C Electricity Bill Program
  • C Factors of a Number Program
  • C Factorial of a Number Program
  • C GCD of Two Numbers
  • C Generic Root of a Number
  • C Gross Salary of an Employee
  • C Largest of Two Numbers
  • C Largest of Three numbers
  • C Last Digit Of a Number
  • C LCM of Two Numbers
  • C Leap Year program
  • C Multiplication Table program
  • C Natural Numbers from 1 to N
  • C Natural Numbers in reverse
  • C NCR Factorial of a Number
  • C Number is Divisible by 5 and 11
  • C Palindrome Program
  • C Palindrome String program
  • C Perfect Number Program
  • C Profit or Loss Program
  • C Print 1 to 100
  • C Print Prime Numbers 1 to 100
  • C Prime Number program
  • C Prime Factors of a Number
  • C Prime, Armstrong or Perfect
  • C Positive or Negative program
  • C Print Odd Numbers 1 to N
  • C Print Even Numbers 1 to N
  • C Print Integer, Char & Float
  • C Power of a Number program
  • C Product of Digits in a Number
  • C Roots of a Quadratic Equation
  • C Reverse a Number
  • C Simple Calculator Program
  • C Simple Interest
  • C Square of a Number
  • C Square Root of a Number
  • C Standard Deviation program
  • C Strong Number Program
  • C Student Grade program
  • C Sum of Odd Numbers program
  • C Sum of Even Nums program
  • C Sum of Even and Odd Nums
  • C Swap First & Last digit of Num
  • C Sum of First & Last digit Num
  • C Sum of Digits of a Number
  • C Sum of N Numbers Program
  • C Sum and Average of n Number
  • C Swap 2 Numbers
  • C Total, Avg & % of Five Subjects
  • C Quick Sort
  • C Selection Sort
  • C Insertion Sort
  • C Bubble Sort
  • C Fibonacci Series Program
  • C Nth Fibonacci number
  • C Sum of AP Series
  • C Sum of GP Series
  • C Sum of series 1³+2³+3³+….+n³
  • C Sum of series 1²+2²+3²+….+n²
  • C ASCII value of String chars
  • C Print Characters in a String
  • C Compare Two Strings
  • C Concatenate Two Strings
  • C Copy String
  • C String length program
  • C Convert String to Lowercase
  • C First Occurrence of string char
  • C First Occur of String Word
  • C Count Occur of string Char
  • C Count Alphabets, Digits & Special Chars
  • C Count Vowels & Consonants
  • C string remove all Occ of char
  • C remove 1st Occ of char in string
  • C remove last Occ char in string
  • C replace All Occ of char in string
  • C Replace last Occ of String Char
  • C Replace 1st occ char in string
  • C Reverse words Order in string
  • C Reverse a String
  • C Toggle Case of all char in string
  • C Array Arithmetic Operations
  • C Matrix Arithmetic Operations
  • C Count Frequency of array item
  • C Count Duplicate Array items
  • C Count +ve & -Ve Array items
  • C Count Even & Odd Array items
  • C Copy an Array to another
  • C Delete Duplicate Array items
  • C Delete an Element in an Array
  • C insert an Element in an Array
  • C 2nd largest Number in an Array
  • C Find Largest Array Number
  • C Find Smallest Array Number
  • C Largest & Smallest Array item
  • C Merge Two Arrays
  • C Print Unique Array Elements
  • C Print Arrayy Elements
  • C Print Negative Array Numbers
  • C Print Positive Array Numbers
  • C Put +ve & -Ve in 2 Arrays
  • C Put Even & Odd in 2 Arrays
  • C Program to Reverse an Array
  • C Search an Element in an Array
  • C Sum of array even, odd nums
  • C Sort Array in Ascending Order
  • C Sort Array in Descending
  • C Swap 2 Arrays without Temp
  • C Sum of all Array Elements
  • C Sum of each Matrix column
  • C sum of each row in a Matrix
  • C Sum of Matrix row & column
  • C Add Two Matrices
  • C Sparse Matrix
  • C Symmetric Matrix
  • C Identity Matrix
  • C Interchange Matrix Diagonals
  • C Check two Matrices Equal
  • C Lower Triangle of a Matrix
  • C Upper Triangle of a Matrix
  • C Sum of Lower Triangle Matrix
  • C Sum of Upper Triangle Matrix
  • C Subtract Two Matrices
  • C Transpose of a Matrix program
  • C Cuboid Volume & Surface Area
  • C Cone Volume & Surface Area
  • C Cube Volume & Surface Area
  • C Volume & Surface of Cylinder
  • C Volume & Surface of Sphere
  • C Tutorial
  • C# Tutorial
  • Java Tutorial
  • JavaScript Tutorial
  • Python Tutorial
  • MySQL Tutorial
  • SQL Server Tutorial
  • R Tutorial
  • Power BI Tutorial
  • Tableau Tutorial
  • SSIS Tutorial
  • SSRS Tutorial
  • Informatica Tutorial
  • Talend Tutorial
  • C Programs
  • C++ Programs
  • Java Programs
  • Python Programs
  • MDX Tutorial
  • SSAS Tutorial
  • QlikView Tutorial

Copyright © 2021 | Tutorial Gateway· All Rights Reserved by Suresh

Home | About Us | Contact Us | Privacy Policy