제출 #789859

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
789859		ezzzay	Arranging Shoes (IOI19_shoes)	C++14	25 / 100	21 ms	1876 KiB

shoes

#include "shoes.h"
#include<bits/stdc++.h>
using namespace std;
long long count_swaps(vector<int> s) {
   if(s.size()<=16){
       long long k=0;
       int g=0;
       for(int i=0;i<s.size();i+=2){
           if(s[i]<0){ 
               int j=i+1;
               for(int j=i+1;j<s.size();j++){
                   if(s[i]*-1==s[j])break;
               }
               int idx=j;
               
               while(idx!=i+1){
                   swap(s[idx],s[idx-1]);
                   k++;
                   idx--;
               }
           }
           else{
               int j=i+1;
               for(int j=i+1;j<s.size();j++){
                   if(s[i]*-1==s[j])break;
               }
               int idx=j;
               while(idx!=i+1){
                   swap(s[idx],s[idx-1]);
                   k++;
                   idx--;
               }
               k++;
           }
       }
		return k;
	}
	long long k=0;
	int g=0;
	for(int i=0;i<s.size();i++){
	    if(s[i]<0){
	        k+=abs(g-i);
	        g+=2;
	    }
	}
	return k;
}

컴파일 시 표준 에러 (stderr) 메시지

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:8:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    8 |        for(int i=0;i<s.size();i+=2){
      |                    ~^~~~~~~~~
shoes.cpp:11:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   11 |                for(int j=i+1;j<s.size();j++){
      |                              ~^~~~~~~~~
shoes.cpp:24:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |                for(int j=i+1;j<s.size();j++){
      |                              ~^~~~~~~~~
shoes.cpp:7:12: warning: unused variable 'g' [-Wunused-variable]
    7 |        int g=0;
      |            ^
shoes.cpp:40:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   40 |  for(int i=0;i<s.size();i++){
      |              ~^~~~~~~~~

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