Submission #143267

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
143267	2019-08-13 13:12:35	tpoppo	Arranging Shoes (IOI19_shoes)	C++14	100 / 100	229 ms	141008 KiB

shoes

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#include "shoes.h"
#include<bits/stdc++.h>
#define lsb(x) (x&(-x))
using namespace std;
const int MAXN = 2e5 + 1000;
const int OFFSET = 1e5 + 50;
using pii = pair<int,int>;
using ll = long long;
struct fenwick{
  int N;
  vector<ll> ft;
  void init(int n){
      N=n;
      ft.resize(n+1);
  }
  void update(int pos,int delta){
      for(++pos;pos<=N;pos+=lsb(pos)){
          ft[pos]+=delta;
      }
  }
  ll query(int pos){
      ll ans=0;
      for(++pos;pos!=0;pos-=lsb(pos)){
          ans+=ft[pos];
      }
      return ans;
  }
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:51:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int i=0;i<s.size();i++){
               ~^~~~~~~~~
shoes.cpp:64:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int i=0;i<cp.size();i++){
               ~^~~~~~~~~~
shoes.cpp:70:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int i=0;i<2*cp.size();i++){
               ~^~~~~~~~~~~~

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