Submission #429093

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
429093	2021-06-15 17:22:16	keko37	The Collection Game (BOI21_swaps)	C++14	100 / 100	8 ms	540 KiB

swaps

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#include<bits/stdc++.h>
#include "swaps.h"
using namespace std;
typedef pair <int, int> pi;
const int MAXN = 505;
int n, p[MAXN];
vector <pi> v;
void upd () {
  for (auto pp : v) schedule(p[pp.first], p[pp.second]);
  vector <int> ans = visit();
  for (int i = 0; i < ans.size(); i++) {
    if (ans[i] == 0) swap(p[v[i].first], p[v[i].second]);
  }
}
void solve (int N, int V) {
  n = N;
  for (int i = 0; i < n; i++) p[i] = i + 1;
  for (int i = 0; i < 9; i++) {
    v.clear();
    for (int pos = 0; pos < n; pos++) {
      int par = pos ^ ((1 << (i + 1)) - 1);
      if (par < pos) v.push_back({par, pos});
    }
    upd();
 
 
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Compilation message (stderr)

swaps.cpp: In function 'void upd()':
swaps.cpp:16:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   16 |  for (int i = 0; i < ans.size(); i++) {
      |                  ~~^~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 10 / 10
• Subtask 3: 3 / 3
• Subtask 4: 2 / 2
• Subtask 5: 9 / 9
• Subtask 6: 6 / 6
• Subtask 7: 9 / 9
• Subtask 8: 6 / 6
• Subtask 9: 21 / 21
• Subtask 10: 14 / 14
• Subtask 11: 9 / 9
• Subtask 12: 6 / 6