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为什么是runtime error?我建立的是结构体链表,
#include<iostream>
#include<math.h>
using namespace std;
struct node
{
int num;
int line;
int column;
node *next;
};
int main()
{
int n,M,N,K,i,j,a,total,time;
cin>>n;
while(n--)
{
cin>>M>>N>>K;
node head,*p,*q;
head.next=NULL;
for(i=1;i<=M;i++)
{
for(j=1;j<=N;j++)
{
cin>>a;
if(a>0)
{
p=&head;
while(p->next) //将非0结点插入链表中
{
if(p->next->num>a)
p=p->next;
else
break;
}
q=(node *)malloc(sizeof(node));
q->next=p->next;p->next=q;
q->line=i;q->column=j;q->num=a;
}
}
}
p=head.next;time=p->line+1;total=p->num;//计算最大数
while(time+p->line<=K)
{
time+=abs(p->next->line-p->line)+abs(p->next->column-p->column)+1;
total+=p->next->num;
p=p->next;
}
total=total-p->num;
cout<<total<<endl;
}
return 0;
}
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