This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#pragma GCC optimize("Ofast,O3,unroll-loops")
#pragma GCC target("avx,avx2")
#include <bits/stdc++.h>
using namespace std;
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define bpc(x) __builtin_popcount(x)
#define bpcll(x) __builtin_popcountll(x)
#define MP make_pair
//#define endl '\n'
mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
typedef long long ll;
const int MOD = 1e9 + 7;
const int N = 5e4 + 2;
vector<tuple<int, int, int>> g[N];
bitset<N> full;
int ans[N];
void dfs(int v, int p, bitset<N> cur){
ans[v] = (int) cur.count();
for (auto [u, l, r] : g[v]){
if (u == p) continue;
int k = r - l + 1;
bitset<N> b = cur | ((full >> l) << (N - k) >> (N - k - l));
dfs(u, v, b);
}
}
void solve(){
int n, m;
cin >> n >> m;
for (int i = 1; i < n; i++){
int u, v, l, r;
cin >> u >> v >> l >> r;
g[u].emplace_back(v, l, r);
g[v].emplace_back(u, l, r);
}
full.set();
dfs(1, -1, bitset<N>());
for (int i = 2; i <= n; i++) cout << ans[i] << endl;
}
int main(){
clock_t startTime = clock();
ios_base::sync_with_stdio(false);
#ifdef LOCAL
freopen("input.txt", "r", stdin);
freopen("output.txt", "w", stdout);
#endif
int test_cases = 1;
// cin >> test_cases;
for (int test = 1; test <= test_cases; test++){
// cout << (solve() ? "YES" : "NO") << endl;
solve();
}
#ifdef LOCAL
cerr << "Time: " << int((double) (clock() - startTime) / CLOCKS_PER_SEC * 1000) << " ms" << endl;
#endif
return 0;
}
Compilation message (stderr)
Main.cpp: In function 'int main()':
Main.cpp:58:13: warning: unused variable 'startTime' [-Wunused-variable]
58 | clock_t startTime = clock();
| ^~~~~~~~~
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