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- #include <stdio.h>
- #include <stdlib.h>
- #include <math.h>
- int main()
- {int a[20];
- int n,i,j,ok,nr=0;
- printf("n=");
- scanf("%d",&n);
- for(i=0;i<n;i++){
- printf("a[%d]=",i);
- scanf("%d",&a[i]);
- }
- for(i=0;i<n;i++){
- ok=1;
- if(a[i<2])
- ok=0;
- for(j=2;j<=sqrt(a[i]);i++)
- if(a[i]%j==0){
- ok=0;
- break;
- }if(ok==1)
- nr++;
- printf("%d",nr);
- }
- return 0;
- }
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