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  1.  
  2. #include<bits/stdc++.h>
  3. using namespace std;
  4. #define ll long long int 
  5. int main()
  6. {
  7.     int t;
  8.     cin>>t;
  9.     ll n,m,j;
  10.     while(t--) {
  11.     	cin>>n>>m>>j;
  12.     	ll  ans;
  13.     	if(j == 1)
  14.     	ans = abs (m - n);
  15.     	else{
  16.  
  17.     	if( n % j!= 0 && m%j ==0)
  18.     	ans =abs(abs( m/j ) - abs( n/j));
  19.     	else
  20.     	if( n % j== 0 && m%j ==0)
  21.     	ans = m%j;
  22.     	else	
  23.     	if( n % j!= 0 && m%j !=0)
  24.     	ans =abs(abs( m/j ) - abs( n/j));
  25.     	else
  26.     	if(n%j == 0 && m%j!= 0)
  27.     	ans =abs(abs( m/j ) - abs( n/j));
  28.     }
  29.      	cout<<ans<<"\n";
  30.         ans = 0;
  31.     }
  32.     return 0;
  33. }
  34.  
Success #stdin #stdout 0s 3300KB
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stdin
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4
7 9 1
7 9 11
1 1 1
8 8 1
stdout
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https://ideone.com/ANQ7FA
language:
C++ (gcc 8.3)
created:
9 years ago
visibility:
public

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