Submission #854412

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
854412	2023-09-27 12:04:44	Wansur	Longest Trip (IOI23_longesttrip)	C++17	100 / 100	13 ms	1208 KiB

longesttrip

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#include <vector>
#include<bits/stdc++.h>
using namespace std;
bool are_connected(std::vector<int> A, std::vector<int> B);
bool ask(vector<int> a,vector<int> b){
  return are_connected(a,b);
}
bool ask(int a,int b){
  return are_connected({a},{b});
}
std::vector<int> longest_trip(int n, int D){
  vector<int> p1,p2;
  p1.push_back(0);
  int t=1;
  if(n%2==0){
    t++;
    if(ask({0},{1})){
      p1.push_back(1);
    }
    else{
      p2.push_back(1);
    }
  }
  for(int i=t;i<n;i+=2){
    if(!p2.size()){
      if(ask(i,i+1)){
 
 
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Compilation message (stderr)

longesttrip.cpp: In function 'std::vector<int> longest_trip(int, int)':
longesttrip.cpp:111:13: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  111 |    int mid=l+r>>1;
      |            ~^~
longesttrip.cpp:125:13: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  125 |    int mid=l+r>>1;
      |            ~^~
longesttrip.cpp:139:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  139 |   for(int i=pos1;i<p1.size();i++){
      |                  ~^~~~~~~~~~
longesttrip.cpp:145:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  145 |   for(int i=pos2;i<p2.size();i++){
      |                  ~^~~~~~~~~~

• Subtask 0: 0 / 0
• Subtask 1: 5 / 5
• Subtask 2: 10 / 10
• Subtask 3: 25 / 25
• Subtask 4: 60 / 60