SUMMIN C++

#include <bits/stdc++.h>
using namespace std;

int a[1000005];
int i,p,n;
void nhap()
{
    //cin>>n;
    scanf("%d",&n);
    for(i=1;i<=n;i++)
        //cin>>a[i];
        scanf("%d",&a[i]);

}

void xuli()
{
    int minn=1000000000;
    for(i=1;i<=n-1;i++)
    {
        if(abs(a[i]+a[i+1])<=minn)
        {
            minn= abs(a[i]+a[i+1]);
            p=i;
        }
    }
    cout<<minn<<endl;
    cout<<p<<" "<<(p+1);
}

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    freopen("summin.inp","r",stdin);
    freopen("summin.out","w",stdout);
    nhap();
    xuli();
}