Submission #94299

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
94299	2019-01-17 11:53:41	Kastanda	Hard route (IZhO17_road)	C++11	100 / 100	1149 ms	102028 KiB

road

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#include<bits/stdc++.h>
#define pb push_back
using namespace std;
const int N = 500005;
int n, D[N], C[N], D2[N], C2[N];
long long Max, cnt;
vector < int > Adj[N];
void DFS(int v, int p)
{
    for (int i = 0; i < Adj[v].size(); i++)
        if (Adj[v][i] == p)
            swap(Adj[v][i], Adj[v].back()),
            Adj[v].pop_back();
    if (!Adj[v].size())
    {
        D[v] = 0;
        C[v] = 1;
        return ;
    }
    for (int &u : Adj[v])
        DFS(u, v), D[v] = max(D[v], D[u] + 1);
    for (int &u : Adj[v])
        if (D[v] == D[u] + 1)
            C[v] += C[u];
}
void DFS2(int v, int p)
{
    int Mxd[2] = {D2[v], -1};
    int Cnt[2] = {0 , 0};
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

road.cpp: In function 'void DFS(int, int)':
road.cpp:10:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < Adj[v].size(); i++)
                     ~~^~~~~~~~~~~~~~~
road.cpp: In function 'int main()':
road.cpp:119:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
     ~~~~~^~~~~~~~~~
road.cpp:123:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d%d", &v, &u);
         ~~~~~^~~~~~~~~~~~~~~~

• Subtask 1: 19 / 19
• Subtask 2: 33 / 33
• Subtask 3: 48 / 48