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为什么Runtine Error呢?看了半天,不明白!#include<iostream.h> int main() { int n; while(cin>>n) { if(!n) break; int a[300000]={0},k=n,i,t=n; for(i=2;i*i<=k;i++) { if(k%i!=0) continue; a[i]++; k/=i; i=1; } if(k!=1&&a[k]==0) n=n/k*(k-1); for(i=2;i*i<=t;i++) if(a[i]) n=n/i*(i-1); cout<<n<<endl; } return 0; } Followed by:
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