Submission #628874

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
628874	2022-08-13 18:48:54	welleyth	Thousands Islands (IOI22_islands)	C++17	5 / 100	41 ms	4428 KiB

islands

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#include "islands.h"
#include <variant>
#include <vector>
#include <bits/stdc++.h>
using namespace std;
map<pair<int,int>,vector<int>> cnt;
vector<int> ans;
bool ok = true;
void go1(int a,int b){
    pair<int,int> A = {a,b};
    pair<int,int> B = {b,a};
    if(cnt[A].size() == 0){
        ok = false;
        return;
    }
    ans.push_back(cnt[A][0]);
    return;
}
void go2(int a,int b){
    pair<int,int> A = {a,b};
    pair<int,int> B = {b,a};
    if(cnt[B].size() == 0){
        ok = false;
        return;
    }
    ans.push_back(cnt[B][0]);
    if(cnt[A].size() < 2){
        ok = false;
 
 
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Compilation message (stderr)

islands.cpp: In function 'void go1(int, int)':
islands.cpp:13:19: warning: variable 'B' set but not used [-Wunused-but-set-variable]
   13 |     pair<int,int> B = {b,a};
      |                   ^

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