結果
| 問題 |
No.1054 Union add query
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2020-05-15 22:04:49 |
| 言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
MLE
|
| 実行時間 | - |
| コード長 | 3,126 bytes |
| コンパイル時間 | 3,074 ms |
| コンパイル使用メモリ | 193,724 KB |
| 実行使用メモリ | 512,368 KB |
| 最終ジャッジ日時 | 2024-09-19 10:36:33 |
| 合計ジャッジ時間 | 6,965 ms |
|
ジャッジサーバーID (参考情報) |
judge3 / judge1 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 1 MLE * 1 -- * 1 |
| other | -- * 8 |
ソースコード
//#pragma GCC optimize("Ofast,no-stack-protector,unroll-loops")
//#pragma GCC target("avx,avx2")
//#pragma GCC target("avx2")
//#pragma GCC optimize("O3")
//# include <x86intrin.h>
# include <bits/stdc++.h>
# include <ext/pb_ds/assoc_container.hpp>
# include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
using namespace std;
template<typename T> using ordered_set = tree <T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
#define _USE_MATH_DEFINES_
#define ll long long
#define ld long double
#define Accepted 0
#define pb push_back
#define mp make_pair
#define sz(x) (int)(x.size())
#define every(x) x.begin(),x.end()
#define F first
#define S second
#define lb lower_bound
#define ub upper_bound
#define For(i,x,y) for (ll i = x; i <= y; i ++)
#define FOr(i,x,y) for (ll i = x; i >= y; i --)
#define SpeedForce ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0)
// ROAD to... Red
inline void Input_Output () {
//freopen(".in", "r", stdin);
//freopen(".out", "w", stdout);
}
const double eps = 0.000001;
const ld pi = acos(-1);
const int maxn = 1e7 + 9;
const int mod = 1e9 + 7;
const ll MOD = 1e18 + 9;
const ll INF = 1e18 + 123;
const int inf = 2e9 + 11;
const int mxn = 1e6 + 9;
const int N = 6e5 + 123;
const int M = 22;
const int pri = 997;
const int Magic = 2101;
const int dx[] = {-1, 0, 1, 0};
const int dy[] = {0, -1, 0, 1};
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
int n, m, k;
int op[N], a[N], b[N];
int p[N];
vector < int > g[N];
int ans[N];
int u[N];
vector < int > add[N], q[N];
int get (int x) {
if (p[x] != x) p[x] = get(p[x]);
return p[x];
}
int f[N];
int id[N];
void upd (int p, int x) {
for(; p < N; p |= (p+1))
f[p] += x;
}
int query (int r) {
int res = 0;
while(r > 0) {
res += f[r];
r = (r&(r+1)) - 1;
}
return res;
}
void dfs (int v) {
for (auto it : add[v]) {
// cout << "+ " << it << '\n';
upd(it, b[it]);
}
for (auto it : q[v]) {
ans[it] = query(it);
// cout << "que: " << it << '\n';
}
int ptr = 0;
for (auto to : g[v]) {
while(ptr < sz(add[v]) && id[to] > add[v][ptr]) {
auto it = add[v][ptr++];
upd(it, -b[it]);
// cout << "- " << it << '\n';
}
dfs(to);
}
while(ptr < sz(add[v])) {
auto it = add[v][ptr++];
upd(it, -b[it]);
// cout << "- " << it << '\n';
}
}
int main () {
scanf("%d%d", &n, &m);
For (i, 1, m) {
scanf("%d%d%d", &op[i], &a[i], &b[i]);
}
For (i, 1, n) p[i] = i;
For(i, 1, m) if (op[i] == 1) {
int x = get(a[i]), y = get(b[i]);
if (x > y) swap(x, y);
g[x].pb(y);
id[y] = i;
p[y] = x;
} else if (op[i] == 2) {
int x = get(a[i]);
add[x].pb(i);
} else {
//int x = get(a[i]);
q[a[i]].pb(i);
}
For (i, 1, n) {
if(p[i] == i) {
dfs(i);
}
}
For (i, 1, m) if(op[i] == 3) {
printf("%d\n", ans[i]);
}
return Accepted;
}
// B...a