# include<iostream> # include<cmath> # include<limits.h> using namespace std; int main(){ long long n,a[1001],x=LLONG_MAX,y,z;//为社么y和z要设为max? cin>>n; for(int i=0;i<=n-1;i++){ cin>>a[i]; } for(int i=0;i<n-1;i++){ for(int j=i+1;j<n;j++){ if(x>abs(a[i]-a[j])){ x=abs(a[i]-a[j]); y=i+1; z=j+1; } } } cout<<y<<" "<<z<<endl; return 0; }