#include <stdio.h>
int main(void) {
int a,b=0,fl=0,d;
int arr[a];
for(int i=0;i<a;i++){
}
for(int i=0;i<a;i++){
for(int j=i+1; j<a ;j++){
if(arr[i]==arr[j]){
b++;
d=arr[i];
}
}
}
if(b%2!=0){
}
return 0;
}
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