Submission #12030

#	Time	Username	Problem	Language	Result	Execution time	Memory
12030		dohyun0324	Sequence (BOI14_sequence)	C++98	100 / 100	304 ms	2016 KiB

sequence

#include<stdio.h>
#include<vector>
using namespace std;
int sw,n;
long long int dap=2147483647000000000000LL,c;
void dfs(long long int num,vector<int>a,int n,long long int w)
{
    int i,j;
    if(w>=10000000) return;
    if(n==-1)
    {
        if(num<w) num+=w*10;
        if(num==0) num=w*10;
        if(dap>num) dap=num;
        return;
    }
    if(num+w>=dap) return;
    if(n==1)
    {
        c=0;
        for(i=1;i<=9;i++)
        {
            if((1<<i)&a[0])
            {
                c=c*10+i;
                if(c<10 && 1&a[0]) c=c*10;
            }
        }
        if(a[0]==1) c=10;
        if(c>dap/w) return;
        c*=w; c+=num;
        if(c==0) c=w*10;
        if(dap>c)
        {
            dap=c;
        }
        return;
    }
    for(i=0;i<=9;i++)
    {
        vector<int>s((i+n-1)/10+1);
        sw=0;
        for(j=0;j<n;j++)
        {
            s[(i+j)/10]|=a[j]&(1023-(1<<((i+j)%10)));
            if(s[(i+j)/10]) sw=1;
        }
        if(i==0 && a[0]==0 && sw==0)
        {
            if(dap>num) dap=num;
            break;
        }
        if(sw==0){dfs(i*w+num,s,-1,w); break;}
        dfs(i*w+num,s,(i+n-1)/10+1,w*10);
    }
}
int main()
{
    int i;
    scanf("%d",&n);
    vector<int>a(n);
    for(i=0;i<n;i++){
        scanf("%d",&a[i]);
        a[i]=(1<<a[i]);
    }
    dfs(0,a,n,1);
    printf("%lld",dap);
    return 0;
}

• Subtask 1: 9 / 9
• Subtask 2: 33 / 33
• Subtask 3: 25 / 25
• Subtask 4: 33 / 33