C program to Sort Names in Alphabetical Order

Write a C program to sort names in alphabetical order. This example allows entering multiple strings or names and sorting them in alphabetical order using for loop. The if statement (if (strcmp(str[i], str[j]) > 0) ) compares each string with the other. The strcpy function will copy that string to temp and then alter their positions based on the result.

#include <stdio.h>
#include <string.h>

int main()
{
	char str[50][50], temp[50];
	int i, j, number;

	printf("How many Strings you want to enter = ");
	scanf("%d", &number);

	printf("Please Enter String one by one\n");
	for (i = 0; i <= number; i++)
	{
		fgets(str[i], sizeof str[i], stdin);
	}
	for (i = 0; i <= number; i++)
	{
		for (j = i + 1; j <= number; j++)
		{
			if (strcmp(str[i], str[j]) > 0)
			{
				strcpy(temp, str[i]);
				strcpy(str[i], str[j]);
				strcpy(str[j], temp);
			}
		}
	}

	printf("\n***** The Order of the  Sorted Strings *****");
	for (i = 0; i <= number; i++)
	{
		puts(str[i]);
	}
	return 0;
}
C program to Sort Names in Alphabetical Order

In this C program, the sortNamesAlphabetically function will sort the set of strings or string names in alphabetical order.

#include <stdio.h>
#include <string.h>

char str[50][50], temp[50];
int i, j, number;

void sortNamesAlphabetically()
{
	for (i = 0; i <= number; i++)
	{
		for (j = i + 1; j <= number; j++)
		{
			if (strcmp(str[i], str[j]) > 0)
			{
				strcpy(temp, str[i]);
				strcpy(str[i], str[j]);
				strcpy(str[j], temp);
			}
		}
	}
}
int main()
{
	printf("How many Words you want to enter = ");
	scanf("%d", &number);

	printf("Please Enter one by one\n");
	for (i = 0; i <= number; i++)
	{
		fgets(str[i], sizeof str[i], stdin);
	}

	sortNamesAlphabetically();

	printf("\n**********");
	for (i = 0; i <= number; i++)
	{
		puts(str[i]);
	}
	return 0;
}
How many Words you want to enter = 6
Please Enter one by one
usa
india
uk
japan 
china
australia

**********

australia

china

india

japan

uk

usa

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Suresh is the founder of TutorialGateway and a freelance software developer. He specialized in Designing and Developing Windows and Web applications. The experience he gained in Programming and BI integration, and reporting tools translates into this blog. You can find him on Facebook or Twitter.