#include<iostream> using namespace std; int main(){ int n; int x; int y; cin>>n>>x>>y; if(y%x!=0){ cout<<n-y/x-1; }else{ if(n-y/x<=0){ cout<<"0"; }else{ cout<<n-y/x;} } return 0; }

#include<iostream> using namespace std; int main(){ int n; int x; int y; cin>>n>>x>>y; if(y%x!=0){ cout<<n-y/x-1; } else{ if(n-y/x<=0){ cout<<"0"; } else{ cout<<n-y/x;} } return 0; }

#include<iostream> using namespace std; int main(){ int n; int x; int y; cin>>n>>x>>y; if(y%x!=0){ cout<<n-y/x-1; }else{ if(n-y/x<=0){ cout<<"0"; }else{ cout<<n-y/x;} } return 0; }