Submission #841727

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
841727	2023-09-02 01:19:52	hoanghq2004	Dynamic Diameter (CEOI19_diameter)	C++17	100 / 100	247 ms	51680 KiB

diameter

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#include <bits/stdc++.h>
using namespace std;
const int N = 1e5 + 10;
int n, q;
vector <pair <int, long long>> g[N];
int a[N], in[N], out[N], ti, euler[N * 3];
long long d[N];
void dfs(int u, int p) {
    in[u] = ++ti;
    euler[ti] = u;
    for (auto [v, w]: g[u]) {
        if (v == p) continue;
        d[v] = d[u] + w;
        dfs(v, u);
        euler[++ti] = u;
    }
    out[u] = ti;
}
struct node {
    long long mx, mn;
    long long uw, wv;
    long long uwv;
    long long lazy;
    node operator + (const node& other) const {
        node ret;
 
 
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Compilation message (stderr)

diameter.cpp: In function 'void build(int, int, int)':
diameter.cpp:56:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   56 |     int mid = L + R >> 1;
      |               ~~^~~
diameter.cpp: In function 'void add(int, int, int, int, int, long long int)':
diameter.cpp:73:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   73 |     int mid = L + R >> 1;
      |               ~~^~~

• Subtask 1: 11 / 11
• Subtask 2: 13 / 13
• Subtask 3: 7 / 7
• Subtask 4: 18 / 18
• Subtask 5: 24 / 24
• Subtask 6: 27 / 27