本地与线上输出不同，求助

#include <stdio.h>
#include <iomanip>
#include <algorithm>
#include <math.h>
#include <iostream>
#define Maxn 1000005
#define D double

const long long inf = 5e18;
int n;

D min(D a, D b) {
    return a < b ? a : b;
}

struct node {
    D x, y;

    friend bool operator < (node a, node b) {
        if(a.x != b.x) return a.x < b.x;
        else if(a.y != b.y) return a.y < b.y; 
        return 0;
    }
}g[Maxn];

D p(D a) { return a * a; }
D ab(D a) { return a > 0 ? a : -a; } 

D dist(int a, int b) {
    return sqrt(p(ab(g[a].x - g[b].x)) + p(ab(g[a].y - g[b].y)));
} 

D Get(int L, int R) {
    if(L == R) return inf;
    int mid = L + R >> 1;
    D d = min(Get(L, mid), Get(mid + 1, R)); 

    for(int i = L; i <= mid; ++ i) {
        for(int j = mid + 1; j <= R; ++ j) {
            if(ab(g[i].x - g[j].x) >= d) break;
            d = min(d, dist(i, j)); 
        }
    }

    return d;
} 

int main() {
    std :: ios :: sync_with_stdio(false); scanf("%d", &n);
    for(int i = 1; i <= n; ++ i) std :: cin >> g[i].x >> g[i].y;
    std :: sort(g + 1, g + n + 1), std :: cout << std :: setiosflags(std :: ios :: fixed) << std :: setprecision(4) << Get(1, n); 
}

下载的数据本地 AC，提交输出 0