题解 - 计算偶数

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zhy666 LV 5 @ 2024-11-24 13:00:18

#include<bits/stdc++.h> using namespace std; int main() { int n,x=1; cin>>n; for(;x<=n;) { if (x%2==0) cout<<x<<" "; x++; } return 0; }
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长崎素世 LV 5 @ 2024-11-13 13:56:23

#include<bits/stdc++.h> using namespace std; int main(){ int n,i; cin>>n; for(i=2;i<=n;i=i+2){ cout<<i<<" "; } return 0; }
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24李家轩 LV 3 @ 2024-11-13 13:53:54

#include<bits/stdc++.h> using namespace std; int main() { int n,x; cin>>n; for(int a=2;a<=n;a++) { x=a; if(x%2==0) { cout<<x; } else { cout<<" "; } } return 0; }
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励志当程序员 LV 4 @ 2024-11-13 13:52:17
#include<bits/stdc++.h> using namespace std; int main() { int n,i=1; cin>>n; while(i<=n) { if(i%2==0) { cout<<i<<" "; } i++; }
```
return 0;
```
}

大青果皇帝*安排化*晓辉 (波尔多阶鸦) LV 9 @ 2024-11-9 13:09:37

#include<bits/stdc++.h>
using namespace std;
int main()
{
	int n;
	cin>>n;
	for(int i=2;i<=n;i=i+2)
	{
		cout<<i<<" ";
	}
	return 0;
}

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坂上智代 (24 邓烨磊) LV 9 @ 2024-11-8 16:36:33

//格式符号（%d）与转义符号（NULL）更快

#include<bits/stdc++.h> using namespace std; int main() {int b; cin>>b; for(int a=2;a<=b;a=a+2){ scanf("%d",&a); printf("%d ",a); } return 0; }
- 坂上智代 (24 邓烨磊) @ 2024-11-8 16:37:14
  
  printf里的%d后要空格
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23邹天乐 LV 5 @ 2024-1-7 13:41:51

#include<bits/stdc++.h> using namespace std; int main() { int n,i=1; cin>>n; if(n%2==0) {for(i=2;i<=n;i=i+2){cout<<i<<" ";}} else {i++;for(i=2;i<=n;i=i+2) {cout<<i<<" ";}} return 0; }
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2233 LV 7 @ 2024-1-5 13:05:29

#include<bits/stdc++.h>

using namespace std;

int main()

{

int n,i=1;

cin>>n;

if(n%2==0)

{

for(i=2;i<=n;i=i+2)

{

cout<<i<<" ";

}

}

else

{

i++;

for(i=2;i<=n;i=i+2)

{

cout<<i<<" ";

}

}

return 0;

}
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24miku LV 6 @ 2024-11-9 13:05:46
#include<bits/stdc++.h> using namespace std; int main() { int a,i=1; cin>>a; for(i=1;i<=a;i=i+1) { if(i%2==0) { cout<<i<<" "; }
```
}
return 0;
```
}