Submission #97524

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
97524	2019-02-16 18:00:57	Alexa2001	Ideal city (IOI12_city)	C++17	100 / 100	277 ms	22548 KiB

city

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#include <bits/stdc++.h>
using namespace std;
const int Mod = 1e9, Nmax = 1e5 + 5;
typedef long long ll;
int n, x[Nmax], y[Nmax], w[Nmax];
vector<int> edge[Nmax], v[Nmax];
void dfs(int node, int dad = 0)
{
    for(auto it : edge[node])
        if(it != dad)
        {
            dfs(it, node);
            w[node] += w[it];
            w[node] %= Mod;
        }
}
void add_edge(set< pair<int,int> > &Edges, int x, int y)
{
    if(Edges.find({x, y}) != Edges.end()) return;
    edge[x].push_back(y); edge[y].push_back(x);
    Edges.insert({x, y});
}
int calc_dist() /// vertical
{
 
 
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Compilation message (stderr)

city.cpp: In function 'int calc_dist()':
city.cpp:44:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(j=0; j<v[i].size(); ++j)
                  ~^~~~~~~~~~~~

• Subtask 1: 11 / 11
• Subtask 2: 21 / 21
• Subtask 3: 23 / 23
• Subtask 4: 45 / 45