Hi!

I was coding the Segment Tree (Dynamic) in C++ by storing all the data of a node in a struct. While coding, I found that the following small piece of code generated a very large binary file on the compilation (32 MB). Even compilation time was a little longer than usual.

#include <bits/stdc++.h>
using namespace std;

const int N = 1e5;

struct Node {
    int a = 1, b = 1;
};

Node segtree[40*N];

int main() {

    return 0;
}

However, while doing a slight change in the above code, the size of the binary file reduced to 20 KB (that's around 1600 times smaller).

#include <bits/stdc++.h>
using namespace std;

const int N = 1e5;

struct Node {
    int a = 1, b;
};

Node segtree[40*N];

int main() {

    return 0;
}

I use the following command to compile: g++ -o out file.cpp, and the size of the out (Binary File) is mentioned above.