#include <stdio.h>
void func(int *arr){
for(int i=0;i<10;i=i+2){
*(arr+i) *=10;
//arr[i] = arr[i]*10
}
return;
}
int main(void) {
int arr[10] = {0,1,2,3,4,5,6,7,8,9};
func(arr);
for(int i=0;i<10;i++){
}
return 0;
}
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