Submission #1243141

#	Time	Username	Problem	Language	Result	Execution time	Memory
1243141		nvujica	Longest Trip (IOI23_longesttrip)	C++20	Compilation error	0 ms	0 KiB

longesttrip

#include "longesttrip.h"
#include <bits/stdc++.h>

using namespace std;

const int dosta = 1e5;

vector<int> longest_trip(int n, int d){
    srand(time(0));

    vecto<int> v;
    for(int i = 0; i < n; i++) v.push_back(i);

    for(int i = 0; i < dosta; i++){
        int p1 = rand() % n;
        int p2 = rand() % n;

        if(p1 != p2) swap(v[p1], v[p2]);
    }

    vector <int> a, b;

    a.push_back(0);

    for(int i = 1; i < n; i++){
        //if(rand() % 2) swap(a, b);
        
        if(are_connected({a.back()}, {v[i]})) a.push_back(v[i]);
        else if(b.empty() || are_connected({b.back()}, {v[i]})) b.push_back(v[i]);
        else {
            while(!b.empty()){
                a.push_back(b.back());
                b.pop_back();
            }
            b.push_back(v[i]);
        }
    }

    if(a.size() < b.size()) swap(a, b);

    return a;
}

Compilation message (stderr)

longesttrip.cpp: In function 'std::vector<int> longest_trip(int, int)':
longesttrip.cpp:11:5: error: 'vecto' was not declared in this scope
   11 |     vecto<int> v;
      |     ^~~~~
longesttrip.cpp:11:11: error: expected primary-expression before 'int'
   11 |     vecto<int> v;
      |           ^~~
longesttrip.cpp:12:32: error: 'v' was not declared in this scope
   12 |     for(int i = 0; i < n; i++) v.push_back(i);
      |                                ^
longesttrip.cpp:18:27: error: 'v' was not declared in this scope
   18 |         if(p1 != p2) swap(v[p1], v[p2]);
      |                           ^
longesttrip.cpp:28:39: error: 'v' was not declared in this scope
   28 |         if(are_connected({a.back()}, {v[i]})) a.push_back(v[i]);
      |                                       ^
longesttrip.cpp:28:25: error: could not convert '{<expression error>}' from '<brace-enclosed initializer list>' to 'std::vector<int>'
   28 |         if(are_connected({a.back()}, {v[i]})) a.push_back(v[i]);
      |            ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
      |                         |
      |                         <brace-enclosed initializer list>
longesttrip.cpp:29:43: error: could not convert '{<expression error>}' from '<brace-enclosed initializer list>' to 'std::vector<int>'
   29 |         else if(b.empty() || are_connected({b.back()}, {v[i]})) b.push_back(v[i]);
      |                              ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
      |                                           |
      |                                           <brace-enclosed initializer list>