Submission #12797

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
12797	2015-01-03T14:28:01 Z	woqja125	전선 연결하기 (GA9_wire)	C++	Compilation error	0 ms	0 KB

wire

#include<stdio.h>
int d[600001];
int l[300001];
int ans[300001];
int a[300001], at=-1;
int b[300001], bt=-1;
int main()
{
	int n, i;
	int a, b, t;
	a[++at] = b[++bt] = 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++)
	{
		t = l[d[i]];
		if(t == i) continue;
		while(a[at] <= i) at--;
		while(b[bt] <= i) bt--;
		if(t > a && t > b)
		{
//			while(1);
			printf("IMPOSSIBLE");
			return 0;
		}
		if(t <= a[at] && (a[at] <= b[bt] || b[bt] < t) )
		{
			a[++at] = t;
			ans[d[i]] = 0;
		}
		else if(t <= b[bt] && (b[bt] < a[at] || a[at] < t))
		{
			b[++bt] = t;
			ans[d[i]] = 1;
		}
		else while(1);
	}
	for(i=1; i<=2*n; i++) printf("%c", ans[d[i]]==1?'v':'^');
	return 0;
}

Compilation message

wire.cpp: In function 'int main()':
wire.cpp:11:8: error: invalid types 'int[int]' for array subscript
wire.cpp:11:18: error: invalid types 'int[int]' for array subscript
wire.cpp:22:13: error: invalid types 'int[int]' for array subscript
wire.cpp:23:13: error: invalid types 'int[int]' for array subscript
wire.cpp:30:15: error: invalid types 'int[int]' for array subscript
wire.cpp:30:25: error: invalid types 'int[int]' for array subscript
wire.cpp:30:34: error: invalid types 'int[int]' for array subscript
wire.cpp:30:43: error: invalid types 'int[int]' for array subscript
wire.cpp:32:10: error: invalid types 'int[int]' for array subscript
wire.cpp:35:20: error: invalid types 'int[int]' for array subscript
wire.cpp:35:30: error: invalid types 'int[int]' for array subscript
wire.cpp:35:38: error: invalid types 'int[int]' for array subscript
wire.cpp:35:47: error: invalid types 'int[int]' for array subscript
wire.cpp:37:10: error: invalid types 'int[int]' for array subscript
wire.cpp:12:17: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
wire.cpp:15:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]