#include <iostream>
#include <stdio.h>
using namespace std;
int main()
{
short int chars[26] = {0};
char str[257] = {'\0'};
char c;
int pos = 0;
int len = 0;
int count = 0;
bool flag;
cout<<"String: ";
cin.getline(str, 255);
cout<<"Result"<<endl;
len = strlen(str);
str[len + 1] = '\0';
str[len] = ' ';
len++;
for(int i = 0; i < len; i++)
{
if(str[i] == ' ')
{
flag = true;
for(int j = 0; j < 26; j++)
{
if(chars[j] > 1)
{
flag = false;
break;
}
}
if(flag)
{
count++;
for(int j = pos; j < i; j++)
{
cout<<str[j];
}
cout<<endl;
}
for(int j = 0; j < 26; j++)
{
chars[j] = 0;
}
pos = i + 1;
}
else
{
c = tolower(str[i]);
if(c >= 'a' && c <= 'z')
{
chars[c - 'a']++;
}
}
}
if(count == 0)
{
cout<<"No words"<<endl;
}
getchar();
return 0;
}
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