Submission #313458

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
313458	2020-10-16 04:09:48	qiangbao	Stations (IOI20_stations)	C++14	100 / 100	1075 ms	1264 KiB

stations

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#include <iostream>
#include <vector>
#define pb push_back
using namespace std;
typedef pair<int, int> pii;
vector<int> con[1001];
vector<int> son[1001];
bool used[1001];
vector<int> ans;
void rt(int x)
{
    int i;
    
    used[x]=true;
    for(i=0;i<con[x].size();i++){
        int f=con[x][i];
        if(!used[f])
            son[x].pb(f), used[f]=true, rt(f);
    }
}
pii wk(int x, int lev, int label)
{
    pii ret={label, 1};
 
 
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Compilation message (stderr)

stations.cpp: In function 'void rt(int)':
stations.cpp:21:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   21 |     for(i=0;i<con[x].size();i++){
      |             ~^~~~~~~~~~~~~~
stations.cpp: In function 'pii wk(int, int, int)':
stations.cpp:35:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |         for(i=0;i<son[x].size();i++){
      |                 ~^~~~~~~~~~~~~~
stations.cpp:43:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   43 |         for(i=0;i<son[x].size();i++){
      |                 ~^~~~~~~~~~~~~~
stations.cpp: In function 'int find_next_station(int, int, std::vector<int>)':
stations.cpp:101:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  101 |         for(i=0;i<nei.size();i++)
      |                 ~^~~~~~~~~~~

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