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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#360486 | #6350. MIT | Glacia | WA | 68ms | 5020kb | C++23 | 2.3kb | 2024-03-21 20:12:48 | 2024-03-21 20:12:49 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
#define int long long
int n, u, v, w, cnt[100471], ans[100471];
vector<pair<int, int>> G[100471], V;
pair<tuple<int, int, int>, tuple<int, int, int>> val[100471];
void dfs(int u, int f, int x, int y) {
V.emplace_back(y, x);
for (auto [v, w] : G[u]) {
if (v != f) {
dfs(v, u, x, y + w);
}
}
}
pair<tuple<int, int, int>, tuple<int, int, int>> merge(pair<tuple<int, int, int>, tuple<int, int, int>> a, pair<tuple<int, int, int>, tuple<int, int, int>> b) {
if (a.first < b.first) {
swap(a, b);
}
return get<2>(b.first) != get<2>(a.first) && b.first > a.second ? make_pair(a.first, b.first) : a;
}
void build(int l, int r, int o) {
if (l == r) {
val[o] = {{V[l].first, l, V[l].second}, {-1, n, 0}};
return;
}
int mid = (l + r) / 2;
build(l, mid, o << 1);
build(mid + 1, r, o << 1 | 1);
val[o] = merge(val[o << 1], val[o << 1 | 1]);
}
void remove(int x, int l, int r, int o) {
if (l == r) {
val[o] = {{-1, n, 0}, {-1, n, -1}};
return;
}
int mid = (l + r) / 2;
if (x <= mid) {
remove(x, l, mid, o << 1);
} else {
remove(x, mid + 1, r, o << 1 | 1);
}
val[o] = merge(val[o << 1], val[o << 1 | 1]);
}
pair<tuple<int, int, int>, tuple<int, int, int>> query(int ll, int rr, int l, int r, int o) {
if (ll <= l && r <= rr) {
return val[o];
} else if (ll <= r && l <= rr) {
int mid = (l + r) / 2;
return merge(query(ll, rr, l, mid, o << 1), query(ll, rr, mid + 1, r, o << 1 | 1));
} else {
return {{-1, n, 0}, {-1, n, -1}};
}
}
signed main() {
scanf("%lld", &n);
for (int i = 1; i < n; i++) {
scanf("%lld%lld%lld", &u, &v, &w);
G[u].emplace_back(v, w);
G[v].emplace_back(u, w);
}
for (int i = 1; i <= n; i++) {
V = {{0, i}};
for (auto [v, w] : G[i]) {
dfs(v, i, v, w);
}
sort(V.begin(), V.end(), greater<pair<int, int>>());
memset(cnt, 0, sizeof(cnt));
build(0, n - 1, 1);
int res = 0, pos = 0;
for (int j = 0; j < n; j++) {
auto [d, u, v] = (cnt[get<2>(val[1].first)] > j / 2 ? val[1].second : val[1].first);
if (u == n) {
break;
}
cnt[v]++;
res += d;
remove(u, 0, n - 1, 1);
ans[j + 1] = max(ans[j + 1], res);
}
}
for (int i = 2; i <= n; i += 2) {
printf("%lld ", ans[i]);
}
}
Details
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Test #1:
score: 100
Accepted
time: 1ms
memory: 4784kb
input:
7 1 3 99 2 3 82 3 4 4 4 5 43 5 6 5 4 7 3
output:
181 280 287
result:
ok 3 number(s): "181 280 287"
Test #2:
score: -100
Wrong Answer
time: 68ms
memory: 5020kb
input:
1000 328 12 58771429 881 504 17030494 847 622 20805817 12 922 58532669 879 929 52585738 495 726 27873950 855 17 37971674 797 941 76999719 702 610 719916 479 127 97829887 731 557 55300256 282 615 88802280 651 318 64099880 540 51 6547869 896 54 87823596 674 879 80674008 77 691 54802376 193 851 7869172...
output:
48829042195 97562386542 146216474947 194713456438 243120633399 291394542517 339657517459 387785045812 435787622310 483691355869 531476208289 578959550298 626628469998 674169104873 721577617950 768862531418 816032104456 863044440224 909960999950 956790589086 1003444852919 1050093110804 1096582356539 ...
result:
wrong answer 12th numbers differ - expected: '579153483709', found: '578959550298'