做题进化史😅

#include <bits/stdc++.h>
using namespace std;
int main()
{
int y,s,j,a;
int n;
cin >> n;
if(n==1 || n==2 || n==3)
{
if(n==1) cout<<3<<endl;
if(n==2)cout<<5<<endl;
if(n==3) cout<<7<<endl;
}
else
{
a = n-3;
//cout << a <<endl;
s = n / 3;
//s++;
//if (s==0) s=1;
//cout << s+1 << "组" <<endl;
//cout << s << "组" <<endl;
y = a % 3;
//cout << "第" << y << "个"<<endl;
if (y==1) j=0;
if (y==2) j=1;
if (y==0) j=-1;
//cout <<"加"<< j <<endl;
cout << 4*(s+1) + j <<endl;
}
return 0;
}
//3 5 7  bs
//8 9 11
//12 13 15
//16 17 19
//20 21 23
//24 25 27

改好了改好了，谢谢同学老师和c++

#include <bits/stdc++.h>
using namespace std;
int main()
{
int y,s,j,a;
int n;
cin >> n;
if(n==1 || n==2 || n==3)
{
if(n==1) cout<<3<<endl;
if(n==2)cout<<5<<endl;
if(n==3) cout<<7<<endl;
}
else
{
a = n-3;
cout << a <<endl;
s = n / 3;
//s++;
//if (s==0) s=1;
//cout << s+1 << "组" <<endl;
cout << s << "组" <<endl;
y = a % 3;
cout << "第" << y << "个"<<endl;
if (y==1) j=0;
if (y==2) j=1;
if (y==0) j=3;
cout <<"加"<< j <<endl;
cout << 4*(s+1) + j <<endl;
}
return 0;
}
//3 5 7  bs
//8 9 11
//12 13 15
//16 17 19
//20 21 23
//24 25 27

第三版，答案对了，提交有问题 （已经注释辅助代码）

#include <bits/stdc++.h>
using namespace std;
int main()
{
int y,s,j,a;
int n;
cin >> n;
if(n==1 || n==2 || n==3)
{
if(n==1) cout<<3<<endl;
if(n==2)cout<<5<<endl;
if(n==3) cout<<7<<endl;
}
else
{
a = n-3;
cout << a <<endl;
s = a / 3;
s++;
//if (s==0) s=1;
cout << s+1 << "组" <<endl;
y = a % 4;
cout << "第" << y << "个"<<endl;
if (y==1) j=0;
if (y==2) j=1;
if (y==3) j=3;
cout <<"加"<< j <<endl;
cout << 4*(s+1) + j <<endl;
}
return 0;
}
//3 5 7  bs
//8 9 11
//12 13 15
//16 17 19
//20 21 23
//24 25 27
//3 5 7  bs
//8 9
//11 12 13
//15 16 17
//19 20 21
//23 24 25

改了改了，还是差点

发题号😕