Why am i getting segmentation error for this problem in coding blocks ide alone?

#1

#include<bits/stdc++.h>
using namespace std;
int main()
{
int n;
cin >> n;
int a[n+1]={0};
int l[n+1]={0};
int r[n+1]={0};
for (int i = 0; i < n; i++)
{
cin >> a[i];
}
l[0] = a[0];
r[n - 1] = a[n - 1];

for (int i = 1; i < n; i++)
{
    l[i] = max(l[i - 1], a[i]);
}

for (int i = n - 2; i >= 0; i--)
{
    r[i] = max(r[i + 1], a[i]);
}
int water = 0;
for (int i = 0; i < n; i++)
{
    water += (min(l[i], r[i]) - a[i]);
}
cout << water;

}

#2

Hey @kani001
Give custom input with it,otherwise it may assume any garbage value which can be greater than 10^6 and try to create array of that size which gives segmentation error :slight_smile:

#3

when i declare the arrays in int main() the program gives error,but when i declare it globally it works…what is the reason behind it?

#4

The maximum size arrays u can create inside a function is close to 10^6 and outside is close to 10^8

#5

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