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- #include <iostream>
- #include <string.h>
- using namespace std;
- int main()
- {
- char s[256];
- int v[26];
- for(char c='a'; c<='z'; c++)
- //v[c-'a']=0;
- v[c]=0;
- cin.get(s, 256);
- for(int i=0; i<strlen(s); i++)
- //if(s[i]>='a' && s[i]<='z' && v[s[i]-'a']==0)
- if(s[i]>='a' && s[i]<='z' && v[s[i]]==0)
- {
- cout<<s[i]<<" ";
- //v[s[i]-'a']=1;
- v[s[i]]=1
- }
- return 0;
- }
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