Submission #12793

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
12793	2015-01-03 14:03:49	woqja125	전선 연결하기 (GA9_wire)	C++98	0 / 100	1000 ms	5776 KiB

wire

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#include<stdio.h>
int d[600001];
int l[300001];
int ans[300001];
int main()
{
  int n, i;
  int a, b, t;
  a = b = 10000000;
  scanf("%d", &n);
  for(i=1; i<=2*n; i++)
  {
    scanf("%d", d+i);
    l[d[i]] = i;
  }
  for(i=1; i<=2*n; i++)
  {
    if(l[d[i]] == i) continue;
    if(a <= i) a = 10000000;
    if(b <= i) b = 10000000;
    t = l[d[i]];
    if(t > a && t > b)
    {
      printf("IMPOSSIBLE");
      return 0;
    }
    if(t <= a && (a <= b || b > t) )
    {
      a = t;
      ans[d[i]] = 0;
 
 
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• Subtask 1: 0 / 9
• Subtask 2: 0 / 15
• Subtask 3: 0 / 37
• Subtask 4: 0 / 39