Submission #157154

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
157154	2019-10-09 18:22:35	fedoseevtimofey	Construction of Highway (JOI18_construction)	C++14	16 / 100	2071 ms	111180 KiB

construction

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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
const int N = 1e5 + 7;
vector <int> g[N];
int sz[N], st[N], en[N], par[N], in[N], out[N], h[N];
int A[N], B[N], C[N];
deque <pair <int, int>> col[N];
void dfs(int u = 0, int p = -1) {
    par[u] = p;
    for (int i = 0; i < g[u].size(); ++i) {
        if (g[u][i] == p) {
            g[u].erase(g[u].begin() + i);
            break;
        }
    }
    sz[u] = 1;
    for (int v : g[u]) {
        dfs(v, u);
        sz[u] += sz[v];
    }
    for (int i = 1; i < (int)g[u].size(); ++i) {
        if (sz[g[u][i]] > sz[g[u][0]]) swap(g[u][i], g[u][0]);
    }
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

construction.cpp: In function 'void dfs(int, int)':
construction.cpp:17:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < g[u].size(); ++i) {
                     ~~^~~~~~~~~~~~~
construction.cpp: In function 'int main()':
construction.cpp:97:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (int i = 0; i < hv.size(); ++i) {
                         ~~^~~~~~~~~~~
construction.cpp:98:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             for (int j = i + 1; j < hv.size(); ++j) {
                                 ~~^~~~~~~~~~~

• Subtask 1: 7 / 7
• Subtask 2: 9 / 9
• Subtask 3: 0 / 84