Submission #1311204

#	Time	Username	Problem	Language	Result	Execution time	Memory
1311204		mo_aladaili	Stations (IOI20_stations)	C++20	Compilation error	0 ms	0 KiB

stations

#include "bits/stdc++.h"
using namespace std;
vector<int> label(int n, int k, vector<int> u, vector<int> v)
{
   vector<int> v(n);
   for (int i = 0; i < n; i++)
      v[i] = i + 1;
   return v;
}
int find_next_station(int s, int t, vector<int> c)
{
   int target = t - 1;
   for (int x : c)
   {
      int v = x - 1;
      int cur = target;
      while (cur > 0)
      {
         if (cur == v)
            return x;
         cur /= 2;
      }
   }
}

Compilation message (stderr)

stations.cpp: In function 'std::vector<int> label(int, int, std::vector<int>, std::vector<int>)':
stations.cpp:5:16: error: declaration of 'std::vector<int> v' shadows a parameter
    5 |    vector<int> v(n);
      |                ^
stations.cpp:3:60: note: 'std::vector<int> v' previously declared here
    3 | vector<int> label(int n, int k, vector<int> u, vector<int> v)
      |                                                ~~~~~~~~~~~~^
stations.cpp: In function 'int find_next_station(int, int, std::vector<int>)':
stations.cpp:24:1: warning: control reaches end of non-void function [-Wreturn-type]
   24 | }
      | ^