#include<stdio.h> void main() { int m,n; int a[5000]; scanf("%d %d",&m,&n); int i,j; 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); } } } } |
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