| ||||||||||
| Online Judge | Problem Set | Authors | Online Contests | User | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Web Board Home Page F.A.Qs Statistical Charts | Current Contest Past Contests Scheduled Contests Award Contest | |||||||||
Re:高手看看我程序有啥问题,为什么总wa阿,不就是求最短路问题吗?In Reply To:Re:高手看看我程序有啥问题,为什么总wa阿,不就是求最短路问题吗? Posted by:flymouse at 2008-04-10 03:47:25 用了多case也不行阿,把原来for (k=1; k<=f; k++) ver[k][k]=MAX;的地方去了也不行,明明是简单的最短路问题,看数据的规模可以用floyd就用了floyd,图好写代码,但总wa,真打击人的,飞鼠大侠,我高中时到过你的空间学东西,现在你那个oi空间貌似找不到,能不能发你新空间的地址给我(hotrhino@163.com),题很简单,你还没做这题呢,应该半个小时不到就可以做出来了,帮帮我看看有什么问题好吗?
#include<stdio.h>
int main(){
int ver[505][505];
int MAX=1000000;
int f,p,cow,timeS;
while(scanf("%d%d%d%d",&f,&p,&cow,&timeS)!=EOF){
int i,j,k;
for (i=0; i<=f; i++)
for (j=0; j<=f;j++)
ver[i][j]=MAX;
int tmp;
for (k=0; k<p; k++){
scanf("%d%d",&i,&j);
scanf("%d",&tmp);
if (tmp<ver[i][j]){
ver[j][i]=tmp;
ver[i][j]=tmp;
}
};
for (k=1; k<=f;k++)
for (i=1;i<=f; i++)
for (j=1;j<=f; j++)
if (ver[i][k]+ver[k][j]<ver[i][j])
ver[i][j]=ver[i][k]+ver[k][j];
int cowstr[500];
int count=0;
for (i=1; i<=cow; i++){
scanf("%d",&cowstr[i]);
if (ver[cowstr[i]][1]<=timeS)
count++;
}
printf("%d\n",count);
for (i=1; i<=cow; i++)
if (ver[cowstr[i]][1]<=timeS)
printf("%d\n",i);
}
return 1;
}
Followed by: Post your reply here: |
All Rights Reserved 2003-2013 Ying Fuchen,Xu Pengcheng,Xie Di
Any problem, Please Contact Administrator