Codeforces 467A. George and Accommodation solution
Solve in c++:
#include<bits/stdc++.h>
using namespace std;
int main()
{
int t,p,q,c=0,r,i;
while(cin>>t)
{
for(i=1; i<=t; i++)
{
cin>>p>>q;
r=abs(q-p);
if(r>=2)
c++;
}
cout<<c<<endl;
c=0;
}
}
#include<bits/stdc++.h>
using namespace std;
int main()
{
int t,p,q,c=0,r,i;
while(cin>>t)
{
for(i=1; i<=t; i++)
{
cin>>p>>q;
r=abs(q-p);
if(r>=2)
c++;
}
cout<<c<<endl;
c=0;
}
}
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