Submission #429747

#	Time	Username	Problem	Language	Result	Execution time	Memory
429747		rumen_m	Split the Attractions (IOI19_split)	C++17	0 / 100	3 ms	2652 KiB

split

#include "split.h"
#include <bits/stdc++.h>
using namespace std;
const int maxn = 1e5+5;
vector<int> res;
vector <int> g[maxn];
int leftt;
void dfs(int v, int par)
{
    res[v] = 2;
    int i;
    if(leftt==0)return ;
    for(auto u:g[v])
    {
        if(res[u]!=0)continue;
        leftt--;
        dfs(u,v);
    }
}
vector<int> find_split(int n, int a, int b, int c, vector<int> p, vector<int> q) {

	res.resize(n);
	int i;
	for(i=0;i<p.size();i++)
    {
        g[p[i]].push_back(q[i]);
        g[q[i]].push_back(p[i]);
    }
	if(a==1)
    {
        leftt = b;
        dfs(0,-1);
        bool fl = false;
        for(i=0;i<n;i++)
        {
            if(res[i])continue;
            if(!fl){res[i] = 1; fl=true;}
            else
                res[i] = 3;
        }
    }
	return res;
}

Compilation message (stderr)

split.cpp: In function 'void dfs(int, int)':
split.cpp:11:9: warning: unused variable 'i' [-Wunused-variable]
   11 |     int i;
      |         ^
split.cpp: In function 'std::vector<int> find_split(int, int, int, int, std::vector<int>, std::vector<int>)':
split.cpp:24:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |  for(i=0;i<p.size();i++)
      |          ~^~~~~~~~~

• Subtask 1: 0 / 7
• Subtask 2: 0 / 11
• Subtask 3: 0 / 22
• Subtask 4: 0 / 24
• Subtask 5: 0 / 36