Submission #597552

#	Time	Username	Problem	Language	Result	Execution time	Memory
597552		FatihSolak	Arranging Shoes (IOI19_shoes)	C++17	50 / 100	1089 ms	1876 KiB

shoes

#include "shoes.h"
#include <bits/stdc++.h>
using namespace std;
long long count_swaps(vector<int> s){
	long long ans = 0;
	int n = s.size();
	long long x = n/2;
	for(int i = 0;i<n;i+=2){
		int mini = -1;
		int val = 1e9;
		for(int j = i;j<n;j++){
			if(s[j] < 0){
				for(int c = i;c<n;c++){
					if(s[c] == -s[j]){
						int nowval = j - i;
						nowval += (c - (i+1)) + (j >c);
						if(nowval < val){
							val = nowval;
							mini = s[j];
						}
						break;
					}
				}
			}
		}
		for(int j = i;j<n;j++){
			if(s[j] == mini){
				for(int c = j-1;c>=i;c--){
					swap(s[c],s[c+1]);
					ans++;
				}
				break;
			}
		}
		for(int j = i+1;j<n;j++){
			if(s[j] == -s[i]){
				for(int c = j-1;c>=i+1;c--){
					swap(s[c],s[c+1]);
					ans++;
				}
				break;
			}
		}
	}
	return ans;
}

Compilation message (stderr)

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:7:12: warning: unused variable 'x' [-Wunused-variable]
    7 |  long long x = n/2;
      |            ^

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