huangzicheng114514 @ 2024-09-18 20:48:11
代码：
#include<bits/stdc++.h>//1j 2s cb 4
using namespace std;
#define ii int
#define ll long long
#define cc char
#define dd double
#define in cin
#define out cout
#define pp printf
#define bb bool
int main()
{
int a,b,sum=0;
in>>a>>b;
bb s[a+10];
for(int i=0;i<=a;i++){
s[i]=true;//TODO
}
for(int i=0;i<b;i++){
int z,x;
cin>>z>>x;
for(int j=z;j<=x;j++){
s[j]=false;//TODO
}
//TODO
}
for(int i=0;i<=a;i++){
if(s[i]=true){
sum++;//TODO
}//TODO
}cout<<sum;
return 0;
}by King_and_Grey @ 2024-09-18 20:50:20
@huangzicheng114514
码风比较丑，仅供借鉴
#include <bits/stdc++.h>
using namespace std;
#define int long long
int n,k,ans;
bool isok[100000];
struct node{
int begin,end;
}a[105];
signed main(){
cin >> n >> k;
memset(isok,true,sizeof(isok));
for (int i = 1; i <= k; i++){
cin >> a[i].begin >> a[i].end;
}
for(int i = 1; i <= k; i++){
for(int j = a[i].begin; j <= a[i].end ;j++){
if(isok[j] == true){
isok[j] = false;
}
}
}
for(int i = 0; i <= n ;i++){
if(isok[i] == true){
ans++;
}
}
cout << ans << endl;
return 0;
}by lin20081016 @ 2024-09-18 20:50:59
最后一个循环的if，==写成=了
by huangzicheng114514 @ 2024-09-18 20:54:10
@lin20081016 6666
by Florrer_A @ 2024-09-18 20:54:39
@huangzicheng114514
#include<iostream>
using namespace std;
int main(){
int l,m;
cin >> l >> m;
int *p = new int [l + 1];
for(int i = 0;i < l + 1;i++){
*(p + i) = 1;
}
for(int i = 0;i < m;i++){
int temp1,temp2;
cin >> temp1 >> temp2;
for(int j = temp1;j <= temp2;j++){
*(p+j)=0;
}
}
int ans = 0;
for(int i = 0;i < l + 1;i++){
if(*(p + i)){
ans++;
}
}
cout << ans;
return 0;
}by huangzicheng114514 @ 2024-09-18 20:55:23
@lin20081016 AC了，谢啦！！！
by huangzicheng114514 @ 2024-09-18 20:56:22
@King_and_Grey 我的更陋。 （求关qwq）
by King_and_Grey @ 2024-09-18 20:56:43
@huangzicheng114514 ok
by huangzicheng114514 @ 2024-09-18 20:56:49
@lin20081016 （求关qwq）
by huangzicheng114514 @ 2024-09-18 21:06:32
@Florrer_A 已AC，求关QWQ