Submission #768404

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
768404	2023-06-28 05:28:12	Abrar_Al_Samit	Factories (JOI14_factories)	C++17	100 / 100	5941 ms	174624 KiB

factories

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#include "factories.h"
#include <bits/stdc++.h>
using namespace std;
const int nax = 5e5 + 3;
const int lg = 20;
vector<pair<int, int>>g[nax];
int st[nax], en[nax], tt = 0;
int up[nax][lg];
long long d[nax];
void dfs(int v, int p) {
    st[v] = tt++;
    up[v][0] = p;
    for(int j=1; j<lg; ++j) {
        up[v][j] = up[up[v][j-1]][j-1];
    }
    for(auto [u, w] : g[v]) if(u!=p) {
        d[u] = d[v] + w;
        dfs(u, v);
    }
    en[v] = tt-1;
}
bool is_anc(int u, int v) {
 
 
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Compilation message (stderr)

factories.cpp: In function 'long long int Query(int, int*, int, int*)':
factories.cpp:90:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   90 |     for(int i=0; i+1<nodes.size(); ++i) {
      |                  ~~~^~~~~~~~~~~~~

• Subtask 1: 15 / 15
• Subtask 2: 18 / 18
• Subtask 3: 67 / 67