Submission #144522

#	Time	Username	Problem	Language	Result	Execution time	Memory
144522		Boxworld	Arranging Shoes (IOI19_shoes)	C++14	50 / 100	1081 ms	2684 KiB

shoes

#include "shoes.h"
#include <bits/stdc++.h>
using namespace std;
long long ans=0;
vector<int> a;
int swapp(int l,int r){
	int t=a[r];
	for (int i=r;i>l;i--)a[i]=a[i-1];
	a[l]=t;
}
long long count_swaps(vector<int> s){
	a=s;
	int n=s.size();
	for (int i=0;i<n;i++)
	if (i%2==0){
		int j;
		for (j=i+1;;j++)
		if (a[i]+a[j]==0)break;
		if (a[i]<0){
			swapp(i+1,j);
			ans+=j-i-1;
		}else{
			swapp(i,j);
			ans+=j-i;
		}
	}
	return ans;
}

Compilation message (stderr)

shoes.cpp: In function 'int swapp(int, int)':
shoes.cpp:10:1: warning: no return statement in function returning non-void [-Wreturn-type]
 }
 ^

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