35 lines
774 B
C++
35 lines
774 B
C++
#include<iostream>
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#include<cstdio>
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#include<cmath>
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#include<cstring>
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#include<algorithm>
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#include<string>
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using namespace std;
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__int64 l[1000005],v[1000005],r;
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int main()
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{
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__int64 n,i,j,k,b;
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int t=0;
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while(~scanf("%I64d",&n))
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{
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t++;
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if(t>=40) continue;
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memset(l,0,sizeof l);
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for(i=1;i<=n;i++)
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{
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scanf("%I64d",&v[i]);
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l[i]=l[i-1]+v[i]+1;
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if(l[i-1]<=v[i]) k=i;
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}
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for(i=k+1,r=0,b=0;i<=n;i++)
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{
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b+=(v[i]<=b);
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r+=max(0ll,v[i]-b);
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}
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if((r+l[k-1])==v[k]) printf("%I64d\n",k);
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else if((r+l[k-1])>v[k]) printf("Unknown\n");
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else printf("Bad Rescue\n");
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}
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return 0;
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}
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