爱是秩序外的一瞬间

using namespace std;
int a[101];
int main(){
    freopen("len.in","r",stdin);
    freopen("len.out","w",stdout);
    int n;
    int x = 10001;
    cin >> n;
    for(int j = 0;j <= n;j ++){
        cin >> a[j];
    }
	for(int i = 0;i <= n;i ++){
        for(int j = i+1;j < n;j ++){
        	x = min(x,abs(a[i]-a[j]));
    	}
    }
    cout << x;
    return 0;
}