你的“scanf("%d,%d",&l,&m);“是什么意思,
不应该是“scanf("%d %d",&l,&m);",
你后面那个也是这个问题,
还有你后面那个“if(*p==1)p++”
是什么意思,题目也没说呀,我已经帮你改过了,你看一下,我这边是ac了
by ashaoruite @ 2023-11-17 22:19:34
```
#include<stdio.h>
int main() {
int l=0,m=0,tree=0,u=0,v=0,sum=0;
scanf("%d %d",&l,&m);
tree=l+1;
int a[tree-1]= {0};
for(int i=0; i<=m-1; i++)
{
scanf("%d %d",&u,&v);
int*p=&a[u];
for(int b=u; b<=v; b++)
{
*p=a[b];
if(*p==0)
{
*p=1;
sum=sum+1;
}
p++;
}
}
tree=tree-sum;
printf("%d\n",tree);
return 0;
}
```
by ashaoruite @ 2023-11-17 22:24:32
@[ashaoruite](/user/994268)
我发错了
by ashaoruite @ 2023-11-17 22:29:48