Submission #1081770

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1081770	2024-08-30 10:20:15	vladilius	Highway Tolls (IOI18_highway)	C++17	0 / 100	12 ms	5812 KiB

highway

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#include "highway.h"
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using pii = pair<int, int>;
#define pb push_back
#define ff first
#define ss second
void find_pair(int n, vector<int> U, vector<int> V, int A, int B){
    int m = (int) U.size();
    vector<pii> g[n + 1];
    for (int i = 0; i < m; i++){
        U[i]++; V[i]++;
        g[U[i]].pb({V[i], i});
        g[V[i]].pb({U[i], i});
    }
    
    vector<int> w(m);
    ll nl = ask(w);
    vector<int> all;
    for (int i = 0; i < m; i++) all.pb(i);
    
    while (all.size() > 1){
        int k = (int) all.size() / 2;
        fill(w.begin(), w.end(), 1);
        for (int i = k; i < all.size(); i++) w[all[i]] = 0;
        
        if (ask(w) == nl){
 
 
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Compilation message (stderr)

highway.cpp: In function 'void find_pair(int, std::vector<int>, std::vector<int>, int, int)':
highway.cpp:28:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   28 |         for (int i = k; i < all.size(); i++) w[all[i]] = 0;
      |                         ~~^~~~~~~~~~~~
highway.cpp:33:31: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   33 |             while (all.size() > k) all.pop_back();
      |                    ~~~~~~~~~~~^~~
highway.cpp:36:31: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   36 |             while (all.size() > k) all.pop_back();
      |                    ~~~~~~~~~~~^~~
highway.cpp: In lambda function:
highway.cpp:117:35: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
  117 |                 while (all.size() > k){
      |                        ~~~~~~~~~~~^~~
highway.cpp:124:35: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
  124 |                 while (all.size() > k) all.pop_back();
      |                        ~~~~~~~~~~~^~~

• Subtask 1: 0 / 5
• Subtask 2: 0 / 7
• Subtask 3: 0 / 6
• Subtask 4: 0 / 33
• Subtask 5: 0 / 18
• Subtask 6: 0 / 31