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实在看不出怎么WA#include<iostream> using namespace std; int a[3010]; bool b[3010]; int main() { int n,ab,tmp; while(cin>>n) { for(int i=0;i<n;i++) { cin>>a[i]; b[i]=0; } if(n==1) { cout<<"Jolly"<<endl; continue; } for(int i=0;i<n-1;i++) { tmp=a[i]-a[i+1]; ab=tmp>0?tmp:-tmp; if(ab>0&&ab<n)b[ab]=1; } int flag=0; for(int i=1;i<n;i++) { if(!b[ab]) { flag=1; break; } } if(flag)cout<<"Not jolly"<<endl; else cout<<"Jolly"<<endl; } return 0; } Followed by:
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