#include "race.h"
#include <iostream>
using namespace std;
long long int p=0,a=9999999,tag[105],ans[10000][105],road[100005],map[200005][3],n,k;
int find(int x)
{
p++;
tag[x]=1;
int g=road[x];
//cout<<x<<endl;
while(g!=-1)
{
int now=map[g][0];
if(tag[now]!=1)
{
find(now);
p--;
//cout<<x<<" "<<now<<" "<<p<<endl;
for(int i=0;i<=k-map[g][2];i++)
{
//cout<<ans[p][i]<<" ";
if(ans[p+1][i]!=-1)
{
if(ans[p][i+map[g][2]]!=-1)ans[p][i+map[g][2]]=min(ans[p][i]+1,ans[p+1][i+map[g][2]]);
else ans[p][i+map[g][2]]=ans[p+1][i]+1;
}
//cout<<ans[p][i+map[]]
}
//cout<<endl;
}
g=map[g][1];
}
if(ans[p][k]!=-1)a=min(a,ans[p][k]);
//cout<<x<<" "<<p<<endl;
//for(int i=0;i<=k;i++)cout<<ans[x][i]<<" ";
//cout<<endl;
}
int best_path(int N, int K, int H[][2], int L[])
{
n=N,k=K;
for(int i=0;i<n;i++)
{
for(int j=1;j<=k;j++)ans[i][j]=-1;
}
for(int i=0;i<n;i++)road[i]=-1;
for(int i=0;i<n-1;i++)
{
int x=H[i][0],y=H[i][1];
map[i*2][0]=y;
map[i*2][1]=road[x];
map[i*2][2]=L[i];
road[x]=i*2;
map[i*2+1][0]=x;
map[i*2+1][1]=road[y];
map[i*2+1][2]=L[i];
road[y]=i*2+1;
}
find(0);
if(a==9999999)a=-1;
return a;
}
Compilation message
race.cpp: In function 'int find(int)':
race.cpp:37:1: warning: no return statement in function returning non-void [-Wreturn-type]
}
^
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
2 ms |
504 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
2 ms |
504 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
2 ms |
504 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
2 ms |
504 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
