假如有从0开始的地方修地铁呢?
by only__one @ 2023-08-13 23:20:23
@[jacobwhite](/user/1019331) 改了一下统计答案的地方,AC了
```cpp
#include <bits/stdc++.h>
using namespace std;
int main()
{
long long l,m,cnt=0;
long long num[11000]={};
cin>>l>>m;
for(int i = 1;i<=m;i++)
{
int u,v;
cin>>u>>v;
for(int j = u;j<=v;j++)
{
num[j] = 1;
}
}
for(int i = 0;i<=l;i++)
{
if(num[i]==0)
{
cnt++;
}
}
cout<<cnt;
return 0;
}
```
(求关注喵~
by Polaris_flame @ 2023-08-13 23:21:12
谢谢大佬!
by jacobwhite @ 2023-08-14 16:03:23