제출 #701940

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
701940		PCTprobability	Gondola (IOI14_gondola)	C++17	55 / 100	30 ms	4608 KiB

gondola

#include <bits/stdc++.h>
#include "gondola.h"
using namespace std;
using ll = long long;
int valid(int n, int inputSeq[]){
  for(int i=0;i<n;i++) inputSeq[i]--;
  set<int> s;
  for(int i=0;i<n;i++) s.insert(inputSeq[i]);
  if(s.size()!=n) return 0;
  for(int i=0;i<n;i++){
    if(inputSeq[i]<n){
      for(int j=0;j<n;j++){
        if(inputSeq[(i+j)%n]<n&&inputSeq[(i+j)%n]!=(inputSeq[i]+j)%n) return 0;
      }
      return 1;
    }
  }
  return 1;
}
int replacement(int n, int gondolaSeq[], int replacementSeq[]){
  for(int i=0;i<n;i++) gondolaSeq[i]--;
  int m=0;
  for(int i=0;i<n;i++) m=max(m,gondolaSeq[i]);
  vector<int> gon(n);
  int v=0;
  for(int i=0;i<n;i++){
    if(gondolaSeq[i]<n){
      v=(i-gondolaSeq[i]+n)%n;
    }
  }
  for(int i=0;i<n;i++) gon[(i+v)%n]=i;
  vector<int> rev(500000,-1);
  for(int i=0;i<n;i++) rev[gondolaSeq[i]]=i;
  set<int> idx;
  for(int i=0;i<n;i++){
    if(gondolaSeq[i]>=n) idx.insert(i);
  }
  for(int i=n;i<=m;i++){
    if(rev[i]==-1){
      int id=(*idx.begin());
      replacementSeq[i-n]=gon[id]+1;
      gon[id]=i;
    }
    else{
      replacementSeq[i-n]=gon[rev[i]]+1;
      idx.erase(rev[i]);
      gon[rev[i]]=i;
    }
  }
  return m-n+1;
}
int countReplacement(int n, int inputSeq[]){
  return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

gondola.cpp: In function 'int valid(int, int*)':
gondola.cpp:9:14: warning: comparison of integer expressions of different signedness: 'std::set<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
    9 |   if(s.size()!=n) return 0;
      |      ~~~~~~~~^~~

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