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- #include <bits/stdc++.h>
- using namespace std;
- vector <int> v;
- int main()
- {
- long long soma=1 ;
- int n,t,a,ok=0;
- scanf("%d %d",&n,&t);
- v.push_back(1);
- for (int i=0;i<n-1;i++)
- {
- scanf("%d",&a);
- v.push_back(a);
- }
- v.push_back(1);
- for (int i=0;i<v.size();i++)
- {
- soma=soma+v[soma];
- printf("%lld ",soma);
- if (soma==t)
- {
- ok=1;
- break;
- }
- }
- if (ok==1)
- printf("YES\n");
- else
- printf("NO\n");
- }
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