Submission #197392

#	Time	Username	Problem	Language	Result	Execution time	Memory
197392		Ahmed_Selim	Arranging Shoes (IOI19_shoes)	C++14	Compilation error	0 ms	0 KiB

shoes

#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(int[] arr){
	for (n = 0; arr[n] ; ++n){
		if(arr[n]<0)konum[1][arr[n]].push_back(n);
		else konum[0][arr[n]].push_back(n);
	}
	for (int i = 0; i < n; i+=2){
		if(arr[i]<0){
			int j=0;
			while(konum[0][arr[i]][j]<0)j++;
			int index=konum[0][arr[i]][j];
			while(index!=i+1){
				swap(arr[index], arr[index-1]);
				cvp++;
			}

			konum[0][arr[i]][j]=-1;
		}else{
			int j=0;
			while(konum[0][arr[i]][j]<0)j++;
			int index=konum[0][arr[i]][j];
			while(index!=i+1){
				swap(arr[index], arr[index-1]);
				cvp++;
			}

			konum[0][arr[i]][j]=-1;
			cvp++;

		}
	}

	return cvp;
}

Compilation message (stderr)

shoes.cpp:12:33: error: expected ',' or '...' before 'arr'
 long long int count_swaps(int[] arr){
                                 ^~~
shoes.cpp: In function 'long long int count_swaps(int*)':
shoes.cpp:13:14: error: 'arr' was not declared in this scope
  for (n = 0; arr[n] ; ++n){
              ^~~
shoes.cpp:18:6: error: 'arr' was not declared in this scope
   if(arr[i]<0){
      ^~~