#include <iostream> using namespace std; int main(){ int n,x,y,a; cin >> n >> x >> y; //(y%x == 0)?a = y/x:a = y/x+1; if (x >= 0 && x <= 99999 && n >= 0 && n <= 99999 && y >= 0 && y <= 99999) { a = y/x; if (y%x != 0) a++; }

#include <iostream> using namespace std; int main(){ int n,x,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; }