Submission #427689

#	Time	Username	Problem	Language	Result	Execution time	Memory
427689		lakshith_	Comparing Plants (IOI20_plants)	C++14	5 / 100	110 ms	7908 KiB

plants

#include "plants.h"
#include <bits/stdc++.h>

using namespace std;

#define what_is(a) cout << #a  << " is " << a << "\n"

int n;
int pref[200000];

void init(int k, std::vector<int> r) {
	n = r.size();
	pref[0]=r[0];
	for(int i=1;i<n;i++)pref[i]=r[i]+pref[i-1];
	return;
}

int getR(int l,int r){
	return pref[r]-(l==0?0:pref[l-1]);
}

int compare_plants(int x, int y) {
	int b = 1;
	if(x>y){
		swap(x,y);
		b=-1;
	}
	int one=getR(x,y-1),zero=y-x-getR(x,y-1);
	//what_is(one);
	//what_is(zero);
	if(zero==0)return -1*b;
	else if(one==0)return 1*b;
	one = getR(y,n-1)+getR(0,x-1),zero=n-y+x-getR(y,n-1)-getR(0,x-1);
	//what_is(one);
	//what_is(zero);
	if(zero==0)return 1*b;
	else if(one==0)return -1*b;
	return 0;
}

• Subtask 1: 5 / 5
• Subtask 2: 0 / 14
• Subtask 3: 0 / 13
• Subtask 4: 0 / 17
• Subtask 5: 0 / 11
• Subtask 6: 0 / 15
• Subtask 7: 0 / 25