# | Time | Username | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
330294 | BeanZ | Ceste (COCI17_ceste) | C++14 | 3 ms | 748 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
// I_Love_LPL
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define endl '\n'
const int N = 2005;
const int lg = 18;
const int mod = 1e9 + 7;
const long long oo = 1e18;
const int lim = 1e6;
struct viet{
ll u, c, t;
};
struct lpl{
ll u, c, t;
bool operator <(const lpl &o) const{
return c > o.c;
}
};
vector<viet> node[N];
ll best[N], dp[N];
int main(){
ios_base::sync_with_stdio(false);
cin.tie(0);
if (fopen("A.inp", "r")){
freopen("test.inp", "r", stdin);
freopen("test.out", "w", stdout);
}
ll n, m;
cin >> n >> m;
for (int i = 1; i <= m; i++){
ll u, v, c, t;
cin >> u >> v >> c >> t;
node[u].push_back({v, c, t});
node[v].push_back({u, c, t});
}
for (int i = 1; i <= n; i++){
best[i] = 1e18;
dp[i] = 1e18;
}
best[1] = 0;
dp[1] = 0;
priority_queue<lpl> pq;
pq.push({1, 0, 0});
while (pq.size()){
lpl x = pq.top();
pq.pop();
if (x.t > best[x.u]) continue;
for (auto j : node[x.u]){
if ((x.t + j.t) < best[j.u]){
best[j.u] = x.t + j.t;
dp[j.u] = min(dp[j.u], (x.t + j.t) * (x.c + j.c));
pq.push({j.u, x.c + j.c, x.t + j.t});
}
}
}
for (int i = 2; i <= n; i++){
if (dp[i] >= 1e17) cout << -1 << endl;
else cout << dp[i] << endl;
}
}
/*
*/
Compilation message (stderr)
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