Submission #335092

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
335092	2020-12-11T06:22:52 Z	nicholask	Strange Device (APIO19_strange_device)	C++14	Compilation error	0 ms	0 KB

strange_device

#include <bits/stdc++.h>
#define int long long
#define x first
#define y second
using namespace std;
int gcd(int a,int b){
	while (b) b^=a^=b^=a%=b;
	return a;
}
signed main(){
	int n,a,b;
	cin>>n>>a>>b;
	pair <int,int> p[n];
	for (int i=0; i<n; i++) cin>>p[i].x>>p[i].y;
	if (n==1){
		__int128 f=p[0].y-p[0].x+1;
		__int128 s=a*b/gcd(b,(b+1)%i);
		int op=min(f,s);
		cout<<op;
	} else {
		set <pair <int,int> > s;
		for (int i=0; i<n; i++){
			for (int t=p[i].x; t<=p[i].y; t++) s.insert({(t+t/b)%a,t%b});
		}
		cout<<s.size();
	}
}

Compilation message

strange_device.cpp: In function 'int main()':
strange_device.cpp:17:30: error: 'i' was not declared in this scope
   17 |   __int128 s=a*b/gcd(b,(b+1)%i);
      |                              ^