swust oj84: 车厢重组

swust oj84: 车厢重组

#include 
int a[10009];

int main()
{
	int n,n1,i,j,cnt=0,temp;
	scanf("%d",&n);
	for(n1=0;n1a[j]){
				temp=a[i];
				a[i]=a[j];
				a[j]=temp;
				cnt++;
			}
		}
	}
	
	printf("%dn",cnt);

return 0;

}