Submission #1233596

#	Time	Username	Problem	Language	Result	Execution time	Memory
1233596		sakka	Arranging Shoes (IOI19_shoes)	C++20	10 / 100	1096 ms	1864 KiB

shoes

#include "shoes.h"
#include <bits/stdc++.h>
#define ll long long
#define pb push_back
#define fi first
#define sec second
#define pll pair<long long, long long>
using namespace std;

ll count_swaps(vector<int> s) {
	int sz = s.size(); ll ans = 0;
	for(int i=0; i<sz; i++){
		if(i%2==0){
			if(s[i]<0)continue;
			else{
				int id = i+1;
				while(s[id]>0)id++;
				while(id>i){
					ans++;
					swap(s[id],s[id-1]); id--;
				}
			}
		}
		else{
			if(s[i]==s[i-1]*-1)continue;
			else{
				int id = i+1;
				while(s[id]!=s[i-1]*-1) id++;
				while(id>i){
					ans++;
					swap(s[id],s[id-1]); id--;
				}
			}
		}
	}
	return ans ;
}

/*
g++ -std=gnu++14 -O2 -Wall -pipe -static -o "shoes" "grader.cpp" "shoes.cpp"

*/

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