#include<stdio.h> int main() { int i,j,m,n,a[5000]; scanf("%d%d",&m,&n); for(i=m;i<=n;i++) { a[i]=0; for(j=1;j<=i/2;j++) { if(i%j==0) { a[i]+=j; } } } for(i=m;i<=n;i++) { for(j=i+1;j<=n;j++) { if(i==a[j]&&j==a[i]) printf("%d %d\n",i,j); } } return 0; } |
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