Submission #144522

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
144522	2019-08-17 03:05:33	Boxworld	Arranging Shoes (IOI19_shoes)	C++14	50 / 100	1081 ms	2684 KiB

shoes

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#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;
}
 
 
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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