题解

#include<bits/stdc++.h>
using namespace std;
int n,k,f,t,m;
int main(){
cin>>n>>k>>f>>t>>m;
vector<int> a(n);
a[0]=f;
for(int i=1;i<n;i++) a[i]=(a[i-1]+t)%m;
nth_element(a.begin(),a.end()-k,a.end());
cout<<a[n-k];
return 0;
}