本地调试好的，为何编译错误。。求大神解释

为什么 编译不过啊!!! 居然编译失败。。 本地都调试好了的啊。。。

求大神 解释

#include<cstdio>
#include<algorithm>
#include<queue>
#include<cstring>
#include<iostream>
using namespace std;
int n,m,ans;
long long B;
const int maxm = 10001,maxn = 50005;
int f[maxn],c[maxm],pd[maxn];
long long d[maxn];
int edge,fir[maxn],to[maxm],w[maxm],next[maxm];
queue<int> Q;
void add(int x,int y,int z){
    w[++edge] = z; to[edge] = y;
    next[edge] = fir[x]; fir[x] = edge;
}
int SPFA(int x){
    memset(d,127,sizeof(d));
    memset(pd,0,sizeof(pd));
    d[1]=0; 
    Q.push(1); pd[1]=1;
    while(!Q.empty()){
        int t = Q.front(); Q.pop(); pd[t]=0;
        for(int i=fir[t]; i ;i=next[i]){
            if( (f[to[i]]<=x)&&(d[t]+w[i]<d[to[i]]) ){
                d[to[i]] = d[t] + w[i];
                if(pd[to[i]]==0) {Q.push(to[i]); pd[to[i]]==1;}
            }
        }
    }
    return B>=d[n];
} 
int main(){
    scanf("%d%d%d",&n,&m,&B);
    int l=0x3f3f3f3f, r=0;
    for (int i=1;i<=n;i++){
        scanf("%d",&f[i]);
        l = min(l,f[i]);
        r = max(r,f[i]);
    }
    for (int i=1;i<=m;i++){
        int x,y,z;
        scanf("%d%d%d",&x,&y,&z);
        add(x,y,z); add(y,x,z);
    }
    while(l<=r){
        int mid=(r-l)/2+l;
        cout<<"asd"<<endl;
        if(SPFA(mid)){
            ans = mid; r = mid-1 ;
        }
        else l = mid+1;
    }
    if(ans==0)printf("AFK\n");
    else {
        int m = -1;
        for(int i=1;i<=n;i++) if((f[i]<=ans)&&(f[i]>m)) m=f[i];
        printf("%d\n",m);
    }
    return 0;
}