20200821 滴滴秋招笔试

1.给定n，输出满足abc+acc=n时的abc和acc，1<=a<=9,0<=b<9，0<=c<=9。

 1 #include <bits/stdc++.h>
 2 using namespace std;
 3 
 4 int main()
 5 {
 6     int n;
 7     int countt=0;
 8     vector<int> res1,res2;
 9     cin>>n;
10     for(int a=1;a<=9;a++){
11         for(int b=0;b<=9;b++){
12             for(int c=0;c<=9;c++){
13                 if(a!=b&&b!=c){
14                     if((a*100+b*10+c+a*100+c*10+c)==n){
15                         countt++;
16                         res1.push_back(a*100+b*10+c);
17                         res2.push_back(a*100+c*10+c);
18                     }
19                 }
20             }
21         }
22     }
23     cout<<countt<<endl;
24     for(int i=0;i<res1.size();i++){
25         cout<<res1[i]<<" "<<res2[i]<<endl;
26     }
27     return 0;
28 }

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