10分求大佬调

#include <bits/stdc++.h>
using namespace std;
const int N = 1e8+5;
int a[N],sum = 0;
int main() {
    a[0] = 6;
    a[1] = 2;
    a[2] = 5;
    a[3] = 5;
    a[4] = 4;
    a[5] = 5;
    a[6] = 6;
    a[7] = 3;
    a[8] = 7;
    a[9] = 6;
    for(int i = 10;i<=1e7+10;i++){
        sum = 0;
        int k=i;
        while(k){
            sum+=a[k%10];
            k/=10;
        }
      a[i] = sum;
    }
    int n;
    cin>>n;
    while(n--){
        int h,l=0;
        cin>>h;
        for(int i = 1;i<=1e7+10;i++){
            if(a[i] == h){
            cout<<i<<endl;
            l++;
            break;
            }
        }
        if(l==0)cout<<-1<<endl;
    }
    return 0;
}