Submission #13942

#	Time	Username	Problem	Language	Result	Execution time	Memory
13942		imsifile	Be Two Bees (OJUZ10_b2b)	C++98	0 / 100	62 ms	7344 KiB

b2b

#include<stdio.h>
#include<algorithm>
using namespace std;

struct a1 {
	long long h, t;
	int ix;
	bool operator< (const a1& c) const {
		if(h!=c.h)return h>c.h;
		return t<c.t;
	}
}ba1[100100];

struct a2 {
	long long h, t;
	int ix;
	bool operator< (const a2& c) const {
		if(t!=c.t)return t<c.t;
		return h>c.h;
	}
}ba2[100100];

int n, da, db;
long long sum, hi[100100], ti[100100];
double dap;

double pick(int a, int b){
	double honey=sum-hi[a]-hi[b];
	double til=(1.0/ti[a])+(1.0/ti[b]);
	return honey/til;
}

int main(){
	int i, j;
	scanf("%d", &n);
	for(i=0; i<n; i++)scanf("%lld", &hi[i]), sum+=hi[i];
	for(i=0; i<n; i++)scanf("%lld", &ti[i]);
	for(i=0; i<n; i++){
		ba1[i].ix=ba2[i].ix=i;
		ba1[i].h=ba2[i].h=hi[i];
		ba1[i].t=ba2[i].t=ti[i];
	}
	sort(ba1,ba1+n);
	sort(ba2,ba2+n);
	da=0, db=1, dap=pick(0,1);
	for(i=0; i<2; i++){
		for(j=0; j<2; j++){
			if(ba1[i].ix != ba2[j].ix){
				double gap=pick(ba1[i].ix, ba2[j].ix);
				if(dap>gap)dap=gap, da=ba1[i].ix, db=ba2[j].ix;
			}
			if(ba1[i].ix != ba1[j].ix){
				double gap=pick(ba1[i].ix, ba1[j].ix);
				if(dap>gap)dap=gap, da=ba1[i].ix, db=ba1[j].ix;
			}
			if(ba2[i].ix != ba2[j].ix){
				double gap=pick(ba2[i].ix, ba2[j].ix);
				if(dap>gap)dap=gap, da=ba2[i].ix, db=ba2[j].ix;
			}
		}
	}
	if(da>db)swap(da,db);
	printf("%d %d", da+1, db+1);
	return 0;
}

• Subtask 1: 0 / 11
• Subtask 2: 0 / 22
• Subtask 3: 0 / 28
• Subtask 4: 0 / 39