Submission #883059

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
883059	2023-12-04 13:08:18	LeticiaFCS	Longest Trip (IOI23_longesttrip)	C++17	100 / 100	12 ms	1808 KiB

longesttrip

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#include "longesttrip.h"
#include<bits/stdc++.h>
using namespace std;
vector<vector<int>> memo;
int point_query(int a, int b){
    if(memo[a][b] != -1) return memo[a][b];
    for(int c = 0; c < memo.size(); c++){
        if(a == c) continue;
        if(b == c) continue;
        if(memo[a][c] == 0 && memo[b][c] == 0)
            return memo[a][b] = memo[b][a] = 1;
    }
    return memo[a][b] = memo[b][a] = are_connected({a}, {b});
}
bool merge_paths(vector<int> p1, vector<int> p2, vector<int> &path){
    if(p1.size() < p2.size()) swap(p1, p2);
    int a = p1[0], b = p1.back();
    int c = p2[0], d = p2.back();
    vector<int> ends_p1, ends_p2;
    if(a == b) ends_p1 = {a};
    else ends_p1 = {a,b};
    if(c == d) ends_p2 = {c};
    else ends_p2 = {c,d};
    if(!are_connected(ends_p1, ends_p2)) return false;
 
 
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Compilation message (stderr)

longesttrip.cpp: In function 'int point_query(int, int)':
longesttrip.cpp:11:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   11 |     for(int c = 0; c < memo.size(); c++){
      |                    ~~^~~~~~~~~~~~~

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