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Replace one or more word in a sentence by another word - String - C Language
690    Arnab De    25/03/2020   

Write a Program to replace one or more occurrence of a word in a sentence by another word in C Language.

Read each word separately from the given sentence and compare to find the word. If it is equal then that word replaced by the given word otherwise restore the previous word. In last print the result.

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#include<stdio.h>

void main()
{
	char str[100],word[50],findw[50],replacew[50],strres[100];
	int i,j;
	strcpy(strres,"");
	printf("Enter String :");
	gets(str);
	strcat(str," ");
	printf("Enter word for search: ");
	gets(findw);
	printf("Enter a word for replace: ");
	gets(replacew);
	j=0;
	for(i=0;str[i]!='\0';i++)
	{
		if(str[i]==' ')
		{
			word[j]='\0';
			if(strcmp(word,findw)==0)
			{
				strcat(strres,replacew);
			}
			else
			{
				strcat(strres,word);
			}
			strcat(strres," ");
			j=0;
		}
		else
		{
			word[j++]=str[i];
		}
	}
	printf(" Result is : ");
	puts(strres);
	getch();
}
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output
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Author Details
Arnab De
I have over 16 years of experience working as an IT professional, ranging from teaching at my own institute to being a computer faculty at different leading institute across Kolkata. I also work as a web developer and designer, having worked for renowned companies and brand. Through tutorialathome, I wish to share my years of knowledge with the readers.
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