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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. bool func(int x, int b){
  5.     int num=0;
  6.     while(x>0){
  7.         num=x%10;
  8.         if(num==b)
  9.             return true;
  10.         x/=10;
  11.     }
  12.     return false;
  13. }
  14. int main(){
  15.     int S, E, B, K;
  16.     cin>>S>>E>>B>>K;
  17.     int ans=-1, cnt=0;
  18.     for(int i=S; i<=E; i++){
  19.         if(i%B==0 or func(i,B)){
  20.             cnt++;
  21.             //cout<<cnt<<':'<<i<<'\n';
  22.         }
  23.         if(cnt==K){
  24.             ans=i;
  25.             break;
  26.         }
  27.     }
  28.     cout<<ans;
  29.     return 0;
  30. }
  31.  
Success #stdin #stdout 0.01s 5528KB
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stdin
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Standard input is empty
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-1
https://ideone.com/rwqe67
seven
language:
C++14 (clang 8.0)
created:
1 year ago
visibility:
public

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