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C Program to Sort Elements in Lexicographical Order (Dictionary Order)

In this example, you will learn to sort 5 strings entered by the user in the lexicographical order (dictionary order).

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To understand this example, you should have the knowledge of the following C programming topics:


Sort strings in the dictionary order

#include #include int main() { char str[5][50], temp[50]; printf("Enter 5 words: "); // Getting strings input for (int i = 0; i < 5; ++i) { fgets(str[i], sizeof(str[i]), stdin); } // storing strings in the lexicographical order for (int i = 0; i < 5; ++i) { for (int j = i + 1; j < 5; ++j) { // swapping strings if they are not in the lexicographical order if (strcmp(str[i], str[j]) > 0) { strcpy(temp, str[i]); strcpy(str[i], str[j]); strcpy(str[j], temp); } } } printf("\nIn the lexicographical order: \n"); for (int i = 0; i < 5; ++i) { fputs(str[i], stdout); } return 0; }

Output

Enter 5 words: R programming
JavaScript
Java
C programming
C++ programming

In the lexicographical order:
C programming
C++ programming
Java
JavaScript
R programming

To solve this program, a two-dimensional string named str is created. The string can hold a maximum of 5 strings and each string can have a maximum of 50 characters (including the null character).

In the program, we have used two library functions:

These functions are used to compare strings and sort them in the correct order.

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