#include <stdio.h>
int main(void) {
// your code goes here
int arr[]={10,20,20,10,10,30,50,10,20};
//printf("%d",sizeof(arr));
int i=0,j=1;
int flag=0;
while(arr[i]==arr[j])
{
j++;
flag++;
}
return 0;
}
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