Submission #630939

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
630939	2022-08-17 11:03:34	garam1732	Thousands Islands (IOI22_islands)	C++17	24 / 100	110 ms	12552 KiB

islands

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#include "islands.h"
#include <iostream>
#include <variant>
#include <vector>
#include <algorithm>
#include <map>
#define ff first
#define ss second
using namespace std;
typedef pair<int, int> pi;
map<pi, int> m;
vector<pi> adj[100100];
vector<pi> v;
vector<int> ans;
bool visited[100100], chk[100100];
int x = -1;
void dfs(int here) {
    //cout << here << endl;
    for(pi there : adj[here]) {
        if(visited[there.ff]) {
            v.push_back(there);
            x = there.ff;
            return;
        }
        if(chk[there.ff]) continue;
        visited[there.ff] = true;
 
 
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Compilation message (stderr)

islands.cpp: In function 'std::variant<bool, std::vector<int, std::allocator<int> > > find_journey(int, int, std::vector<int>, std::vector<int>)':
islands.cpp:58:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   58 |     for(i = 0; i < v.size(); i++) if(v[i].ff == x) break;
      |                ~~^~~~~~~~~~
islands.cpp:62:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   62 |     for(int j = i+1; j < v.size(); j++) ans.push_back(v[j].ss);
      |                      ~~^~~~~~~~~~
islands.cpp:63:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   63 |     for(int j = i+1; j < v.size(); j++) ans.push_back(v[j].ss^1);
      |                      ~~^~~~~~~~~~

• Subtask 1: 0 / 5
• Subtask 2: 0 / 5
• Subtask 3: 0 / 21
• Subtask 4: 24 / 24
• Subtask 5: 0 / 45