Submission #12792

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
12792	2015-01-03 13:55:04	woqja125	전선 연결하기 (GA9_wire)	C++98	0 / 100	0 ms	5776 KiB

wire

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
#include<stdio.h>
int d[600001];
int l[300001];
int ans[300001];
int main()
{
  int n, i;
  int a, b, t;
  a = b = 1000000;
  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 = 1000000;
    if(b <= i) b = 1000000;
    t = l[d[i]];
    if(t > a && t > b)
    {
      printf("IMPOSSIBLE\n");
      return 0;
    }
    if(t > a || ( t<=a && t<=b && b<a))
    {
      b = t;
      ans[d[i]] = 1;
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

• Subtask 1: 0 / 9
• Subtask 2: 0 / 15
• Subtask 3: 0 / 37
• Subtask 4: 0 / 39