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- #include <stdio.h>
- #include <stdlib.h>
- int main()
- {
- int n,i,br=0,zajak,j;
- scanf("%d",&n);
- int a[n];
- for(i=0;i<n;i++)
- scanf("%d",&a[i]);
- for(i=0;i<n;)
- {
- if(a[i]>0)
- {
- zajak=a[i];
- a[i]=0;
- i+=zajak;
- zajak=a[i];
- }
- else if(a[i]<0)
- {
- zajak=a[i];
- a[i]=0;
- i+=zajak;
- zajak=a[i];
- }
- else if(a[i]==0)
- zajak==0;
- int b=0;
- for(j=0;j<n;j++)
- {
- if(a[j]==0)
- b++;
- }
- if(b==n)
- break;
- if(i>n-1 || zajak==0 || i<0)
- {
- br++;
- for(int m=0;m<n;m++)
- {
- if(a[m]!=0)
- {
- zajak=a[m];
- i=m;
- break;
- }
- }
- }
- }
- printf("%d",br);
- return 0;
- }
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