C program to count a number of words in a string; Through this tutorial, we will learn how to count number of words in a given string using standard method, function, and standard library in c.
Programs to Compare two Strings in C
Use the following programs to count number of words in a given string using standard method, function, and standard library in c:
- C Program to Compare two Strings using Standard Method
- C Program to Compare two Strings using Function
- C Program to Compare two Strings using Standard Libarry
C Program to Compare two Strings using Standard Method
#include <string.h>
int main()
{
char s1[1000],s2[1000];
int i,c=0;
printf("Enter string1: ");
gets(s1);
printf("Enter string2: ");
gets(s2);
if(strlen(s1)==strlen(s2))
{
for(i=0;s2[i]!='\0';i++)
{
if(s1[i]==s2[i])
c++;
}
if(c==i)
printf("strings are equal");
else
printf("strings are not equal");
}
else
printf("strings are not equal");
return 0;
}
The output of the above c program; as follows:
Enter string1: hello Enter string2: hello strings are equal
C Program to Compare two Strings using Function
#include <stdio.h>
#include <string.h>
int stringcompare(char *s1,char *s2)
{
int i,c=0;
if(strlen(s1)==strlen(s2))
{
for(i=0;s2[i];i++)
{
if(s1[i]==s2[i])
c++;
}
if(c==i)
return 1;
}
return 0;
}
int main()
{
char s1[1000],s2[1000],c;
printf("Enter string1: ");
gets(s1);
printf("Enter string2: ");
gets(s2);
c=stringcompare(s1,s2);
if(c)
printf("strings are equal");
else
printf("strings are not equal");
return 0;
}
The output of the above c program; as follows:
Enter string1: test Enter string2: test2 strings are not equal
C Program to Compare two Strings using Standard Library
#include <stdio.h>
#include <string.h>
int main()
{
char s1[1000],s2[1000];
printf("Enter string1: ");
gets(s1);
printf("Enter string2: ");
gets(s2);
if(!strcmp(s1,s2))
printf("strings are equal");
else
printf("strings are not equal");
return 0;
}
The output of the above c program; as follows:
Enter string1: class Enter string2: class strings are equal
