﻿ C Program: Find the second smallest element in an array - w3resource

# C Exercises: Find the second smallest element in an array

## C Array: Exercise-17 with Solution

Write a program in C to find the second smallest element in an array.

Visual Presentation: Sample Solution:

C Code:

``````#include <stdio.h>

void main() {
int arr1, n, i, j = 0, sml, sml2nd;

// Prompt user for input
printf("\n\nFind the second smallest element in an array :\n");
printf("--------------------------------------------------\n");
printf("Input the size of the array : ");
scanf("%d", &n);

// Input values for the array
printf("Input %d elements in the array (value must be <9999) :\n", n);
for (i = 0; i < n; i++) {
printf("element - %d : ", i);
scanf("%d", &arr1[i]);
}

// Find the location of the smallest element in the array
sml = arr1;
for (i = 0; i < n; i++) {
if (sml > arr1[i]) {
sml = arr1[i];
j = i;
}
}

// Ignore the smallest element and find the second smallest element in the array
sml2nd = 99999;
for (i = 0; i < n; i++) {
if (i == j) {
i++;  // Ignore the smallest element
i--;
} else {
if (sml2nd > arr1[i]) {
sml2nd = arr1[i];
}
}
}

// Display the second smallest element
printf("The Second smallest element in the array is :  %d \n\n", sml2nd);
}
```
```

Sample Output:

```Find the second smallest element in an array :
--------------------------------------------------
Input the size of array : 5
Input 5 elements in the array (value must be <9999) :
element - 0 : 0
element - 1 : 9
element - 2 : 4
element - 3 : 6
element - 4 : 5
The Second smallest element in the array is :  4
```

Flowchart: C Programming Code Editor:

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