Submission #583438

#	Time	Username	Problem	Language	Result	Execution time	Memory
583438		Mr_Husanboy	Gondola (IOI14_gondola)	C++14	25 / 100	18 ms	4248 KiB

gondola

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

using namespace std;
#define F first
#define S second

int valid(int n, int a[])
{
  vector<int> mp(500000,-1);
  vector<pair<int,int>> pos;
  for(int i=0;i<n;i++){
    if(mp[a[i]]!=-1) return 0;
    mp[a[i]]=i;
  }
  bool ok=1;
  for(int i=1;i<=n;i++){
    if(mp[i]!=-1){
        pos.push_back({mp[i],i});
    }
  }
  for(int i=1;i<pos.size();i++){
    int d=abs(pos[i-1].F-pos[i].F);
    if(pos[i-1].F>pos[i].F){
        d=n-d;
    }
    if(d!=pos[i].S-pos[i-1].S) return 0;
  }
  return 1;
}

//----------------------

int replacement(int n, int g[], int ans[])
{
  int mn=0;
  for(int i=0;i<n;i++){
    if(g[mn]>g[i]) mn=i;
  } vector<int> ng(n);
  if(g[mn]<=n){
    int cnt=0;mn-=g[mn]-1;
    if(mn<0) mn+=n;// cout<<mn<<" mN\n";
    for(int i=mn;i<n;i++) ng[cnt++]=g[i];
    for(int i=0;i<mn;i++) ng[cnt++]=g[i];
  }else for(int i=0;i<n;i++) ng[i]=g[i];
  vector<pair<int,int>> pos;
  for(int i=0;i<n;i++){
    pos.push_back({ng[i],i+1});
  }//for(int i=0;i<n;i++) cout<<ng[i]<<' ';cout<<endl;
  sort(pos.begin(),pos.end());
  int cur=0; int cnt=0;
  for(int i=0;i<n;i++){
    if(pos[i].F==pos[i].S) continue;
    ans[cur+cnt]=pos[i].S;
    cnt++;
    while(cur+n+1<pos[i].F){
        ans[cur+cnt]=cur+n+1; cur++;
    }
  }
  return cur+cnt;
}

//----------------------

int countReplacement(int n, int inputSeq[])
{

}

Compilation message (stderr)

gondola.cpp: In function 'int valid(int, int*)':
gondola.cpp:22:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 |   for(int i=1;i<pos.size();i++){
      |               ~^~~~~~~~~~~
gondola.cpp:16:8: warning: unused variable 'ok' [-Wunused-variable]
   16 |   bool ok=1;
      |        ^~
gondola.cpp: In function 'int countReplacement(int, int*)':
gondola.cpp:68:1: warning: no return statement in function returning non-void [-Wreturn-type]
   68 | }
      | ^

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 10 / 10
• Subtask 4: 5 / 5
• Subtask 5: 0 / 10
• Subtask 6: 0 / 20
• Subtask 7: 0 / 5
• Subtask 8: 0 / 15
• Subtask 9: 0 / 15
• Subtask 10: 0 / 10