Submission #987267

#	Time	Username	Problem	Language	Result	Execution time	Memory
987267		MateiKing80	The Collection Game (BOI21_swaps)	C++14	35 / 100	1028 ms	6716 KiB

swaps

#include "swaps.h"
#include <bits/stdc++.h>

using namespace std;

#define pb push_back
#define fr first
#define sc second
#define pii pair<int, int>

void solve(int n, int v)
{
    set<pii> inf;
    for(int i = 1; i <= n; i ++)
        for(int j = i + 1; j <= n; j ++)
            inf.insert({i,j});

    vector<int> ans(n);
    for(int i = 0; i < n; i ++)
        ans[i] = i + 1;

    for(int i = 0; i < v; i ++)
    {
        set<int> vis;
        set<pii> er;
        vector<pii> ins;
        for(auto it : inf)
        {
            int x = it.fr, y = it.sc;
            if(!vis.count(x) && !vis.count(y))
            {
                schedule(ans[x-1], ans[y-1]);
                vis.insert(x);
                vis.insert(y);
                ins.pb({x,y});
                er.insert(it);
            }
        }

        for(auto it : er) 
            inf.erase(it);

        vector<int> get = visit();
        for(int j = 0; j < get.size(); j ++)
        {
            int x = ins[j].fr, y = ins[j].sc;
            bool val = get[j];
            if(!val)
                swap(ans[x-1], ans[y-1]);
        }
    }
    answer(ans);
}

Compilation message (stderr)

swaps.cpp: In function 'void solve(int, int)':
swaps.cpp:44:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   44 |         for(int j = 0; j < get.size(); j ++)
      |                        ~~^~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 10 / 10
• Subtask 3-1: 3 / 3
• Subtask 3-2: 2 / 2
• Subtask 4-1: 9 / 9
• Subtask 4-2: 6 / 6
• Subtask 5-1: 0 / 9
• Subtask 5-2: 0 / 6
• Subtask 6-1: 0 / 21
• Subtask 6-2: 0 / 14
• Subtask 7-1: 0 / 9
• Subtask 7-2: 0 / 6