Submission #1239573

#	Time	Username	Problem	Language	Result	Execution time	Memory
1239573		MuhammadSaram	Comparing Plants (IOI20_plants)	C++20	Compilation error	0 ms	0 KiB

plants

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

using namespace std;

const int M = 2e5 + 1;

int pre[M];

void init(int k, vector<int> r)
{
	for (int i=0;i<n;i++)
		pre[i+1]=pre[i]+r[i];
	return;
}

int compare_plants(int x, int y)
{
	int len=y-x, val = pre[y]-pre[x];
	if (val%len) return 0;
	return (val==len?-1:1);
}

Compilation message (stderr)

plants.cpp: In function 'void init(int, std::vector<int>)':
plants.cpp:12:24: error: 'n' was not declared in this scope
   12 |         for (int i=0;i<n;i++)
      |                        ^