Write a C program to demonstrate the input and output operations on strings
#include<stdio.h> #include<string.h> int strl(char a[100])
{
int n=0,i;
for (i=0;a[i]!='\0';i++) n++;
return n;
}
void strc(char a[100],char b[100])
{
int n,i,j; n=strlen(a);
for(i=n,j=0;b[j]!='\0';i++,j++) a[i]=b[j];
a[i]='\0'; puts(a);
}
int strcm(char a[100],char b[100])
{
int i,flag=0; for(i=0;(a[i]!='\0')&&(b[i]='\0');i++)
{
if(b[i]==a[i]&&a[i]!='\0'&&b[i]!='\0') flag=1;
else
flag=0;
return flag;
}
}
void strcp(char b[100])
{
char c[100]; int i;
for(i=0;b[i]!='\0';i++) c[i]=b[i];
c[i]='\0'; puts (c);
}
void strr(char a[100])
{
char b[100]; int i,j,n; n=strl(a);
for(i=n-1,j=0;i>=0;i--,j++)
b[j]=a[i];
b[j]='\0'; puts (b);
}
int strst(char a[100],char b[100])
{
int i,j=0,n,flag=0; for(i=0;a[i]!='\0';i++)
{
n=i; for(j=0;b[j]!='\0';j++)
{
if (a[n]==b[j])
{
flag=1; n++;
}
else
{
flag=0; break;
}
if (flag)
break;
}
}
return flag;
}
void main()
{
char a[100],b[100]; printf("enter the string"); gets (a);
gets (b);
printf("string length=%d",strl(a));
printf("string compare=%s\n",strcm(a,b)?"true":"false");
printf("string cat="); strc(a,b);
printf("string sub string=%d",strst(a,b)); printf("string rev=");
strr(a);
}
