uri 1540 solution in cpp
uijjal roy
#include<bits/stdc++.h>
using namespace std;
main()
{
int n,a,b,c,d,i,j;
string s;
double r;
cin>>n;
while(n--)
{
cin>>a>>b;
cin>>c>>d;
r=(double)(d-b)/(c-a);
s=to_string(r);
for(i=0;i<s.size();i++)
{
if(s[i]!='.') cout<<s[i];
else
{
cout<<",";
break;
}
}
for(j=i+1;j<=i+2;j++) cout<<s[j];
cout<<endl;
}
return 0;
}
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