zoj1178问一下各位哪里有问题为什么一直WA

请问各位大佬，我这为什么一直WA？
所有的情况我都试了 没问题啊
#include
#include
#include
int main()
{
int i,j,n;
int page;
while(scanf("%d",&n)&&n)
{
page = (n+3)/4;
printf("Printing order for %d pages:\n",n);
for(i=page*4,j=1;i>j+2;i=i-2,j=j+2)
{
if(!(i>n&&j>n))
{
printf("Sheet %d, front:",(j+1)/2);
(i>n)?printf(" Blank,"):printf(" %d,",i);
(j>n)?printf(" Blank"):printf(" %d",j);
printf("\n");
}
if(!(j+1>n&&i-1>n))
{
printf("Sheet %d, back:",(j+1)/2);
(j+1>n)?printf(" Blank,"):printf(" %d,",j+1);
(i-1>n)?printf(" Blank"):printf(" %d",i-1);
printf("\n");
}
}
}
return 0;
}

 #include <iostream>
#include <queue>
#include <vector>
#include <cstring>
#include <cstdio>
using namespace std;

typedef long long ll;
const int N = 100000 + 100;
const int E = 200000 + 100;
const ll INF = ((ll)1) << 61;

struct edge_t 
{
    int v;
    int next;
    int c, d;
}edge[E];

int head[N], tot = 0;
void add_edge(int u, int v, int d, int c)
{
    edge[tot].d = d; edge[tot].c = c;
    edge[tot].v = v; edge[tot].next = head[u]; head[u] = tot++;
}
struct node
{
    int u;
    ll c,d;
    node (){}
    node(int uu, int cc, int dd)
    {
        u=uu;
        c=cc;
        d=dd;
    }
    friend bool operator < (const node &a, const node &b)
    {
        if(a.d==b.d)return a.c>b.c;
        return a.d>b.d;
    }
};

bool vis[N];
node dis[N];
priority_queue<node>q;
void dijkstra()
{
    dis[0].c = 0;
    dis[0].d = 0;
    q.push(dis[0]);
    while (!q.empty())
    {
        int u = q.top().u; q.pop();
        if(vis[u])continue;
        vis[u] = 1;
        for (int i = head[u]; ~i; i = edge[i].next)if (!vis[edge[i].v])
        {
            int v = edge[i].v;
            if (dis[u].d + edge[i].d < dis[v].d)
            {
                dis[v].d = dis[u].d + edge[i].d;
                dis[v].c = edge[i].c;
                q.push(dis[v]);
            }
            else if (dis[u].d + edge[i].d == dis[v].d&& edge[i].c < dis[v].c)
            {
                dis[v].d = dis[u].d + edge[i].d;
                dis[v].c = edge[i].c;
                q.push(dis[v]);
            }
        }
    }
}
void init(int n)
{
    for (int i = 0; i < n; ++i)
    {
        dis[i].u = i;
        dis[i].c = INF;
        dis[i].d = INF;
    }
    memset(vis, 0, sizeof vis);
    tot = 0;
    memset(head, -1, sizeof head);
    memset(edge, 0, sizeof edge);
}
int main()
{
    int T;
    scanf("%d", &T);
    while (T--)
    {
        int n, m;
        scanf("%d%d", &n, &m);
        init(n);
        for (int i = 0; i < m; ++i)
        {
            int u, v, d, c;
            scanf("%d%d%d%d", &u, &v, &d, &c);
            add_edge(u, v, d, c);
            add_edge(v, u, d, c);
        }
        dijkstra();
        ll sum_c = 0, sum_d = 0;
        for(int i=0 ; i<n ; ++i)
        {
            sum_c+=dis[i].c;
            sum_d+=dis[i].d;
        }
        printf("%lld %lld\n", sum_d, sum_c);
    }
    return 0;
}

back与 ：之间还有一个空格

 #include<stdio.h>

int main()
{
    int i, j, n;
    int page;
    while (scanf("%d", &n) && n)
    {
        page = (n + 3) / 4;
        printf("Printing order for %d pages:\n", n);
        for (i = page * 4, j = 1; i>j + 2; i = i - 2, j = j + 2)
        {
            if (!(i>n&&j>n))
            {
                printf("Sheet %d, front:", (j + 1) / 2);
                (i>n) ? printf(" Blank,") : printf(" %d,", i);
                (j>n) ? printf(" Blank") : printf(" %d", j);
                printf("\n");
            }
            if (!(j + 1>n&&i - 1>n))
            {
                printf("Sheet %d, back :", (j + 1) / 2);        //back与 ：之间还有一个空格
                (j + 1>n) ? printf(" Blank,") : printf(" %d,", j + 1);
                (i - 1>n) ? printf(" Blank") : printf(" %d", i - 1);
                printf("\n");
            }
        }
    }
    return 0;
}

题目链接：http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemId=178