代码如下
#include<stdio.h>

void main()
{
	int n,lines,i,j,num,pos,count,temp;
	int flag[1001] = {0};
	int left[500];
	int right[500];
	int less[1000] = {0};
	int more[1000] = {0}; 
	char ch;
	int inequal = 0;
	
	scanf("%d %d",&n,&lines);

	for(i = 0;i < lines*2;i = i+2)
	{
		
		scanf("%d",&num);
		for(j = 0;j < num;j++)
		   scanf("%d",&left[j]);
		for(j = 0;j < num;j++)
		   scanf("%d",&right[j]);
		getchar();
		ch = getchar();
		
		if(ch == '=')
		{
			for(j = 0;j < num;j++)
			   flag[left[j]] = 1;
			for(j = 0;j < num;j++)
			   flag[right[j]] = 1;
		}
		else
		{
			inequal++;
			if(ch == '>')
			{
				for(j = 0;j<num;j++)
				{
					temp = left[j]; 
					left[j] = right[j];
					right[j] = temp;
				}
			}
			
			for(j = 0;j < num;j++)
			   less[left[j]]++;;
			for(j = 0;j < num;j++)
			   more[right[j]]++;
		}
	}
	
	for(i = 1;i <= n;i++)
	{
		if(((less[i] + more[i] < inequal) && (less[i] != 0 ||more[i] != 0)) ||(less[i] != 0 && more[i] != 0))
		{
			flag[i] = 1;
		}
	}
	pos = 0;
	count = 0;
	for(i = 1;i <= n;i++)
	{
		if(flag[i] == 0)
		{
			pos = i;
			count++;
		}
	}
	
	if(count > 1)
	   printf("0\n");
	else
	   printf("%d\n",pos);
   
}

• Re:很不明白pku上面AC了而九度过不了~~~〒_〒话说也测了大神们的数据可以通过~ (1396) Nrgeup 2016-09-16 23:13:59