// looking to shine brighter in this world...
#define TASK "harbingers"
#ifdef LOCAL
#include "local.h"
#else
#include <bits/stdc++.h>
#define debug(...)
#define DB(...)
#endif
using namespace std;
using ll = long long;
using ld = long double;
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define fi first
#define se second
#define For(i, l, r) for (int i = (l); i <= (r); ++i)
#define Ford(i, r, l) for (int i = (r); i >= (l); --i)
#define Rep(i, n) For (i, 0, (n) - 1)
#define Repd(i, n) Ford (i, (n) - 1, 0)
#define Fe(...) for (auto __VA_ARGS__)
template <class C> inline int isz(const C& c) { return static_cast<int>(c.size()); }
template <class T> inline bool chmin(T& a, const T& b) { return (a > b) ? a = b, true : false; }
template <class T> inline bool chmax(T& a, const T& b) { return (a < b) ? a = b, true : false; }
const bool __initialization = []() {
cin.tie(nullptr)->sync_with_stdio(false);
if (fopen(TASK".inp", "r")) {
(void)(!freopen(TASK".inp", "r", stdin));
(void)(!freopen(TASK".out", "w", stdout)); }
cout << setprecision(12) << fixed;
return true;
}();
constexpr ld eps = 1e-9;
constexpr int inf = 1e9;
constexpr ll linf = 1e18;
// =============================================================================
constexpr int maxn = 1e5 + 5;
struct Data {
int v; ll c;
Data() : v(0), c(0) {}
Data(int _v, ll _c) : v(_v), c(_c) {}
};
struct Town {
ll init, speed;
Town() : init(0), speed(0) {}
Town(ll _i, ll _s) : init(_i), speed(_s) {}
};
int n;
vector<Data> g[maxn];
Town a[maxn];
int par[maxn];
ll dist[maxn];
ll dp[maxn];
void Dfs(int u) {
for (int v = par[u]; v; v = par[v]) {
chmin(dp[u], dp[v] + a[u].init + a[u].speed * (dist[u] - dist[v]));
}
Fe (&[v, c] : g[u]) {
if (par[v] != -1) continue;
par[v] = u;
dist[v] = dist[u] + c;
Dfs(v);
}
}
signed main() {
cin >> n;
Rep (_, n - 1) {
int u, v; ll c; cin >> u >> v >> c;
g[u].emplace_back(v, c);
g[v].emplace_back(u, c);
}
For (i, 2, n) cin >> a[i].init >> a[i].speed;
memset(par + 1, -1, 4 * n);
memset(dp + 1, 0x3f, 8 * n);
par[1] = 0;
dp[1] = 0;
Dfs(1);
For (i, 2, n) {
cout << dp[i] << " \n"[i == n];
}
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
4172 KB |
Output is correct |
2 |
Correct |
19 ms |
4556 KB |
Output is correct |
3 |
Execution timed out |
1093 ms |
9380 KB |
Time limit exceeded |
4 |
Execution timed out |
1057 ms |
11028 KB |
Time limit exceeded |
5 |
Execution timed out |
1052 ms |
13016 KB |
Time limit exceeded |
6 |
Execution timed out |
1083 ms |
14584 KB |
Time limit exceeded |
7 |
Execution timed out |
1088 ms |
11256 KB |
Time limit exceeded |
8 |
Execution timed out |
1083 ms |
14448 KB |
Time limit exceeded |
9 |
Execution timed out |
1085 ms |
14392 KB |
Time limit exceeded |
10 |
Execution timed out |
1079 ms |
13840 KB |
Time limit exceeded |