Submission #812304

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
812304	2023-08-07 08:17:30	LIF	Sorting (IOI15_sorting)	C++14	100 / 100	139 ms	28516 KiB

sorting

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#include "sorting.h"
#include<bits/stdc++.h>
using namespace std;
int a[300005];
vector<pair<int,int> > last;
int pos[300005];
int AA[300005][2];
int val[300005][2];
vector<pair<int,int> > pp;
bool check(int now,int X[],int Y[],int N,int S[])
{
  for(int i=0;i<N;i++)a[i] = S[i];
  for(int i=0;i<now;i++)swap(a[X[i]],a[Y[i]]);
  for(int i=0;i<N;i++)pos[a[i]] = i;
  int ans = 0;
  vector<pair<int,int> > temp;
  for(int i=0;i<N;i++)
  {
    if(a[i] == i)continue;
    int aa = i;
    int bb = pos[i];
    swap(a[aa],a[bb]);
    pos[a[bb]] = bb;
    temp.push_back(make_pair(aa,bb));
    ans++;
  }
  if(temp.size() > now)return false;
  if(temp.size() < now)for(int i=1;i<= now-temp.size();i++)temp.push_back(make_pair(0,0));
  if(ans <= now)
  {
 
 
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Compilation message (stderr)

sorting.cpp: In function 'bool check(int, int*, int*, int, int*)':
sorting.cpp:27:17: warning: comparison of integer expressions of different signedness: 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   27 |  if(temp.size() > now)return false;
      |     ~~~~~~~~~~~~^~~~~
sorting.cpp:28:17: warning: comparison of integer expressions of different signedness: 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   28 |  if(temp.size() < now)for(int i=1;i<= now-temp.size();i++)temp.push_back(make_pair(0,0));
      |     ~~~~~~~~~~~~^~~~~
sorting.cpp:28:36: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   28 |  if(temp.size() < now)for(int i=1;i<= now-temp.size();i++)temp.push_back(make_pair(0,0));
      |                                   ~^~~~~~~~~~~~~~~~~~

• Subtask 1: 8 / 8
• Subtask 2: 12 / 12
• Subtask 3: 16 / 16
• Subtask 4: 18 / 18
• Subtask 5: 20 / 20
• Subtask 6: 26 / 26