Codeforces Round #542 [Alex Lopashev Thanks-Round] (Div. 2) A. Be Positive(水题)

#include <bits/stdc++.h>
using namespace std;
int n;

int main()
{
  scanf("%d",&n);
  int t1 = 0, t2 = 0;
  for(int i=0;i<n;i++){
    int x;
    scanf("%d",&x);
    if(x > 0) t1 ++;
    if(x < 0) t2 ++;
  }
  int xx = (n + 1) >> 1;
  if(t1 >= xx) puts("1");
  else if(t2 >= xx) puts("-1");
  else puts("0");
  return 0;
}