提交时间:2024-01-23 08:22:02
运行 ID: 123498
#include <bits/stdc++.h> using namespace std; int h[2005]={6,2,5,5,4,5,6,3,7,6}; int n,ans; int build_sum(int x) { int sum=0; while(x!=0) { sum+=h[x%10]; x/=10; } return sum; } int main() { cin>>n; n-=4; for(int i=10;i<=1999;++i) { h[i]=build_sum(i); } for(int i=0;i<=999;i++) { for(int j=0;j<=999;j++) { if(h[i]+h[j]+h[i+j]==n) { ans++; } } } cout<<ans; return 0; }