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- #include<stdio.h>
- #include<string.h>
- int main(){
- char name[150];
- gets(name);
- int n=strlen(name);
- char cha[150];
- for(int i=0;i<n;i++){
- name[i]=tolower(name[i]);
- }
- for(int i=0;i<n;i++){
- for(int j=1;j<n;j++){
- if(name[i]==name[j]){
- name[j]=0;
- }
- }
- }
- for(int i=0;i<n;i++){
- if(name[i]==0){
- continue;
- }
- cha[i]=name[i];
- }
- printf("%s",cha);
- }
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