2 19这组数据是几

luogu_MeiFengqi @ 2022-08-24 13:01:46

by 大眼仔Happy @ 2022-08-24 13:02:54

@meifengqi 他是要二进制下的回文吧

by luogu_MeiFengqi @ 2022-08-24 13:08:52

@大眼仔Happy 对 在帮忙看一下代码：

#include<bits/stdc++.h>
using namespace std;
int m,qs,b[101],po=0;
long s;
char a[101];
bool sq=true;
int jz(long s)
{
    int l=strlen(a);
    int s1=0;
    for(int i=0;i<l;i++)
    {
        if(a[i]>='0'&&a[i]<='9')
            s1=a[i]-'0';
        else if (m>=11&&(a[i]>='A'+m-10))
            s1=a[i]-'A'+10;
        s=s*m+s1;
    }
    return s;
}
void HWS(int qs,int temp)
{
    while(temp!=0)
    {
        qs=qs*10+temp%10;
        temp/=10;
    }
    if(qs==po) sq=false;
    else sq=true; 
    return;
}
int main()
{
    scanf("%d",&m);
    scanf("%s",a);
    int ans=0;
    po=jz(s);
    while(sq)
    {
        int ss=po;
        ans++;
        int q=10,w=1;
        while(po/q!=0)
        {
            q*=10;
            w++;
        }
        int e=1;
        do{
            b[e]=ss%10;
            ss/=10;
            e++;
        }while(ss>0);
        for(int i=w,k=1;i>=1;i--,k*=10)
        b[i]*=k;
        for(int i=1;i<=w;i++)
        po+=b[i];
        HWS(0,po);
        if(ans>30)
        {
            printf("Impossible!");
            return 0;
        }
    }
    printf("STEP=%d",ans);
    return 0;
}

by luogu_MeiFengqi @ 2022-08-29 11:58:35

@大眼仔Happy

//在吗
//求助