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- #include<stdio.h>
- #define MAX 100
- int gcd ( int a, int b )
- {
- int c;
- while ( a != 0 ) {
- c = a; a = b%a; b = c;
- }
- return b;
- }
- void swap (int *a, int j){
- int tmp=*(a+j);
- *(a+j)=*(a+j+1);
- *(a+j+1)=tmp;
- }
- int main (){
- int a[MAX];
- int n;
- scanf("%d", &n);
- int i;
- for(i=0; i<n; ++i){
- scanf("%d", &a[i]);
- }
- for(i=0; i<n-1; ++i){
- if(gcd(a[i],a[i+1])==1){
- swap(a,i);
- i++;
- }
- }
- for(i=0;i<n;i++){
- printf("%d ",a[i]);
- }
- return 0;
- }
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