Submission #3363414

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Source Code Expand

#include<bits/stdc++.h>
#define ui unsigned int
#define ll long long
#define db double
#define ld long double
#define ull unsigned long long
#define REP(a,b,c) for(register int a=(b),a##end=(c);a<=a##end;++a)
#define DEP(a,b,c) for(register int a=(b),a##end=(c);a>=a##end;--a)
__int128 n,m,X,Y;
std::vector< std::pair<__int128,__int128> > ans;
template<typename T> inline void read(T &x)
{
	T data=0,w=1;
	char ch=0;
	while(ch!='-'&&(ch<'0'||ch>'9'))ch=getchar();
	if(ch=='-')w=-1,ch=getchar();
	while(ch>='0'&&ch<='9')data=((T)data<<3)+((T)data<<1)+(ch^'0'),ch=getchar();
	x=data*w;
}
template<typename T> inline void write(T x,char ch='\0')
{
	if(x<0)putchar('-'),x=-x;
	if(x>9)write(x/10);
	putchar(x%10+'0');
	if(ch!='\0')putchar(ch);
}
template<typename T> inline void chkmin(T &x,T y){x=(y<x?y:x);}
template<typename T> inline void chkmax(T &x,T y){x=(y>x?y:x);}
template<typename T> inline T min(T x,T y){return x<y?x:y;}
template<typename T> inline T max(T x,T y){return x>y?x:y;}
int main()
{
	read(X);read(Y);
	__int128 st=(2*X-1)/Y,ed=(2*X+Y)/Y;
	for(n=st;n<=ed;++n)
		if(X%Y*n%Y==0)
		{
			m=n*(n+1)/2-X*n/Y;
			if(n>0&&m>0)ans.push_back(std::make_pair(n,m));
		}
	if(!ans.size())puts("Impossible");
	else REP(i,0,ans.size()-1)write(ans[i].first,' '),write(ans[i].second,'\n');
	return 0;
}

Submission Info

Judge Result