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semsem_elazazy

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semsem_elazazy
Apr 25th, 2022
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  1. #include <iostream>
  2. #include<bits/stdc++.h>
  3. #include<utility>
  4. #include <queue>
  5. #define ll long long
  6. #define ull unsigned long long
  7. #define pi  3.14159
  8.  
  9. #define OO  2000000000
  10. //#define ceil(w, m) (((w) / (m)) + ((w) % (m) ? 1 : 0))
  11. using namespace std;
  12.  
  13. void yasmeen_fakhri(){
  14.   ios_base::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr);
  15.   #ifndef ONLINE_JUDGE  
  16.     freopen("input.txt", "r", stdin), freopen("output.txt", "w", stdout);
  17.   #endif
  18. }
  19.  
  20.  
  21.  
  22. int main() {
  23.    yasmeen_fakhri();
  24.  
  25.  int t; cin>>t;
  26.  while(t--){
  27.      
  28.      ll k ,d; cin>>k>>d;
  29.      if(k <= d) cout<<0<<'\n';
  30.      else{
  31.      ll a = k -(d*7);
  32.      if (a <= 8 ) cout<<1<<'\n';
  33.      else{
  34.      ll b= a-8;
  35.      cout<<b+1<<'\n';
  36.      }
  37.      }
  38.  }
  39.    return 0;
  40. }
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