This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits/stdc++.h>
using namespace std;
const int MAX = 2010 ;
struct edge
{
int to , time , cost ;
edge(int ve , int ti , int co)
{
to = ve ;
time = ti ;
cost = co ;
}
};
vector< vector<edge> >adj(MAX) ;
int vis[MAX] ;
int n , m ;
long long ans[MAX] ;
void dfs(int node , int sumt , int sumc)
{
//trying a thing.
long long now = (sumt * 1ll) * (sumc * 1ll) ;
if(now > ans[node] * 8ll)
return ;
ans[node] = min(ans[node] , now) ;
for(auto &child : adj[node])
{
if(vis[child.to] == 1)
continue ;
vis[child.to] = 1 ;
dfs(child.to , sumt + child.time , sumc + child.cost) ;
vis[child.to] = 0 ;
}
return ;
}
int readint()
{
bool minus = false;
int result = 0;
char ch;
ch = getchar();
while (true) {
if (ch == '-') break;
if (ch >= '0' && ch <= '9') break;
ch = getchar();
}
if (ch == '-') minus = true; else result = ch-'0';
while (true) {
ch = getchar();
if (ch < '0' || ch > '9') break;
result = result*10 + (ch - '0');
}
if (minus)
return -result;
else
return result;
}
int main()
{
n = readint() ;
m = readint() ;
int a , b , c , d ;
for(int i = 0 ; i < m ; ++i)
{
a = readint() ;
b = readint() ;
c = readint() ;
d = readint() ;
adj[a].push_back(edge(b , c , d)) ;
adj[b].push_back(edge(a , c , d)) ;
}
long long cons = 1e17 ;
for(int i = 1 ; i <= n ; ++i)
ans[i] = cons ;
dfs(1 , 0 , 0) ;
for(int i = 2 ; i <= n ; ++i)
{
if(ans[i] == cons)
ans[i] = -1 ;
printf("%lld\n" , ans[i]);
}
return 0 ;
}
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