C Programming: Find the largest and smallest word in a string
C String: Exercise-20 with Solution
Write a program in C to find the largest and smallest words in a string.
Sample Solution:
C Code:
#include <stdio.h>
#include <string.h>
#include <ctype.h>
int main() {
char str[100], word[20], mx[20], mn[20], c; // Declare character arrays and variables
int i = 0, j = 0, flg = 0; // Initialize variables for iteration and flags
printf("\n\nFind the largest and smallest word in a string :\n");
printf("-----------------------------------------------------\n");
printf("Input the string : ");
i = 0;
while ((c = getchar()) != '\n' && i < sizeof(str) - 1) { // Read character by character until newline or end of array
if (isalnum(c) || isspace(c)) { // Check for alphanumeric characters and spaces
str[i++] = c; // Store characters in str array
}
}
str[i] = '\0'; // Terminate the string with null character
// Loop through the input string to find the largest and smallest words
for (i = 0; i < strlen(str); i++) {
while (i < strlen(str) && !isspace(str[i]) && isalnum(str[i])) { // Check for alphanumeric characters
word[j++] = str[i++]; // Store characters in word array until a space or non-alphanumeric character is found
}
if (j != 0) { // Check if there's a word
word[j] = '\0'; // Terminate the word with null character
if (!flg) { // Check if it's the first word encountered
flg = !flg; // Set flag to indicate the first word
strcpy(mx, word); // Copy the first word to both mx (max) and mn (min)
strcpy(mn, word);
}
if (strlen(word) > strlen(mx)) { // Compare word lengths to find the maximum
strcpy(mx, word); // Update mx if the current word is longer
}
if (strlen(word) < strlen(mn)) { // Compare word lengths to find the minimum
strcpy(mn, word); // Update mn if the current word is shorter
}
j = 0; // Reset word index for the next word
}
}
// Display the largest and smallest words found in the input string
printf("The largest word is '%s' \nand the smallest word is '%s' \nin the string: '%s'.\n", mx, mn, str);
return 0; // Return 0 to indicate successful execution of the program
}
Sample Output:
Find the largest and smallest word in a string : ----------------------------------------------------- Input the string : It is a string with smallest and largest word. The largest word is 'smallest' and the smallest word is 'a' in the string : 'It is a string with smallest and largest word'.
Flowchart :
C Programming Code Editor:
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