Submission #197397

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
197397	2020-01-20 19:24:47	Ahmed_Selim	Arranging Shoes (IOI19_shoes)	C++14	0 / 100	23 ms	19552 KiB

shoes

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#include <iostream>
#include <cstring>
#include <vector>
#include <set>
#include <algorithm>
#define MOD 1000000007
using namespace std;
long long int cvp, n;
vector<int> konum[2][200010];
long long int count_swaps(vector<int> S){
  for (n = 0; S[n] ; ++n){
    if(S[n]<0)konum[1][-S[n]].push_back(n);
    else konum[0][S[n]].push_back(n);
  }
  for (int i = 0; i < n; i+=2){
    if(S[i]<0){
      int j=0;
      while(konum[0][S[i]][j]<0)j++;
      int index=konum[0][S[i]][j];
      while(index!=i+1){
        swap(S[index], S[index-1]);
        cvp++;
      }
      konum[0][S[i]][j]=-1;
    }else{
      int j=0;
      while(konum[0][S[i]][j]<0)j++;
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:20:26: warning: array subscript is below array bounds [-Warray-bounds]
    while(konum[0][S[i]][j]<0)j++;
                          ^

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