Submission #385691

#	Time	Username	Problem	Language	Result	Execution time	Memory
385691		Ahmadsm2005	Stations (IOI20_stations)	C++14	0 / 100	1071 ms	1064 KiB

stations

#include<bits/stdc++.h>
#include "stations.h"
using namespace std;
int C;
vector<vector<int>>edges;
vector<int>labels;
void DFS(int v,int u=-1){
int INIT=C;
for(int i=0;i<edges[v].size();i++){
C+=10001;
if(edges[v][i]!=u)
DFS(edges[v][i],v);
C-=10001;
C++;
}
C--;
labels[v]=100000000-C;
}
vector<int>label(int n,int k,vector<int>u,vector<int>v){
labels.clear();
labels.resize(n);
edges.resize(n);
for(int i=0;i<u.size();i++){
edges[u[i]].push_back(v[i]),edges[v[i]].push_back(u[i]);
}
DFS(0);
C=0;
edges.clear();
return labels;
}
int find_next_station(int s, int t,vector<int>c){
if((s/10001)<(t/10001))
return c.back();
for(int i=0;i<c.size();i++){
if(c[i]%10001>=t%10001)
return c[i];
}
return c.back();
}

Compilation message (stderr)

stations.cpp: In function 'void DFS(int, int)':
stations.cpp:9:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    9 | for(int i=0;i<edges[v].size();i++){
      |             ~^~~~~~~~~~~~~~~~
stations.cpp:8:5: warning: unused variable 'INIT' [-Wunused-variable]
    8 | int INIT=C;
      |     ^~~~
stations.cpp: In function 'std::vector<int> label(int, int, std::vector<int>, std::vector<int>)':
stations.cpp:23:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   23 | for(int i=0;i<u.size();i++){
      |             ~^~~~~~~~~
stations.cpp: In function 'int find_next_station(int, int, std::vector<int>)':
stations.cpp:34:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   34 | for(int i=0;i<c.size();i++){
      |             ~^~~~~~~~~

• Subtask 1: 0 / 5
• Subtask 2: 0 / 8
• Subtask 3: 0 / 16
• Subtask 4: 0 / 10
• Subtask 5: 0 / 61