样例输出152
by 凑智花 @ 2019-04-11 18:03:38
说实话您的神仙代码没看懂qwq
by Jelly_Goat @ 2019-04-11 18:05:08
终于遇到个说实话的__萌新
by ZORO @ 2019-04-11 18:10:54
额，我......
by 凑智花 @ 2019-04-11 18:12:29
~~这次是真萌新~~
by z_Y_r @ 2019-04-11 18:15:55
话说这题咋做
by 凑智花 @ 2019-04-11 18:19:18
抄了题解的我又错了
```cpp
#include <stdio.h>
#include <string.h>
int l, m, ans = 0;
int a[10001];
int main() {
memset(a, 0, sizeof(a));
scanf("%d%d", &l, &m);
for (int i = 1; i <= m; i++) {
int x, y;
scanf("%d%d", &x, &y);
for (int j = x; j <= y; j++) {
a[j]++;
}
}
for (int i = 1; i <= l; i++) {
if (a[i] != 0) ans++;
}
printf("%d\n", ans);
return 0;
}
```
by 凑智花 @ 2019-04-11 18:21:41
```cpp
#include<iostream>
using namespace std;
int a[10005],b,c;
int main()
{
int L,M,ANS=0;
cin>>L>>M;
for(int i=1;i<=M;i++)
{
cin>>b>>c;
for(;b<=c;b++)
a[b]=1;//设置为真
}
for(int i=0;i<=L;i++)
{
if(a[i]==0)
ANS++;
}
cout<<ANS;
return 0;
}
by 灵光一闪 @ 2019-04-11 18:21:58
~~这几天天天见咕值前十的萌新~~
by 小塘空明 @ 2019-04-11 18:23:04
………………
by AC自动机_ @ 2019-04-11 18:23:33