TO CALCULATE THE CHARACTERS,WORDS AND LINE IN A SENTENCE

//TO CALCULATE THE CHARACTERS,WORDS AND LINE IN A SENTENCE
#include<iostream.h>
#include<string.h>
void main()
{
char str[100];
char ch;
int i,w=0,l=0,c=0;
cout<<"enter para:=\n";
while(1)
{
i=0;
while((ch=cin.get())!='\n')
{
str[i]=ch;
i++;
}

str[i]='\0';
if(str[0]=='\0')
break;
w++;
i=0;
while(str[i]!='\0')
{
if(str[i]=='\t'||str[i]==' ')
w++;
i++;
}
l++;
c=c+strlen(str);
}
cout<<"\n char cnst="<<c;
cout<<"\n wrd count="<<w;
cout<<"\nline count="<<l;
}