What's a SIGILL Runtime Error?

help
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1

Problem Link

#pragma GCC target("avx2")
#include <iostream>
#include <algorithm>
#include <vector>
#include <set>
#include <map>
#include <queue>
#include <stack>
#include <list>
#include <chrono>
#include <random>
#include <cstdlib>
#include <cmath>
#include <ctime>
#include <cstring>
#include <iomanip>
#define ff first
#define ss second
#define ll long long int
#define pb push_back
#define bs ios::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL)
 
#define rep(var,start,end)       for(int var=start;var<end;var++)
#define erep(var,start,end)      for(int var=start;var<=end;var++)
#define rrep(var,start,end)      for(int var=start;var>=end;var--)
#define all(x)			 		 x.begin(),x.end()
#define pii                      pair<int,int>
#define pci                      pair<char,int>
#define pll                      pair<ll,ll>
#define test                     int t;cin>>t;while(t--)
using namespace std;
/////some functions/////
ll modularExponentiation(ll x,ll n,ll M){
	if(n==0)
		return 1;
	else if(n%2 == 0)
		return modularExponentiation((x*x)%M,n/2,M);
	return (x*modularExponentiation((x*x)%M,(n-1)/2,M))%M;
}
template<class T> 
T power(T n, T p){ if(p==0) return 1; else return power(n,p-1)*n;} 
int m;
int root(int arr[],int a ){
	while(arr[a]!=a){
		a = arr[a];
	}
	return a;
}
void init(int arr[],int size[],int n){
	rep(i,1,n){
		arr[i]=i;
		size[i]=1;
	}
}
void weighted_union(int arr[],int size[],int a,int b){
	int r_a = root(arr,a);
	int r_b = root(arr,b);
    if(size[r_a]+size[r_b] > m) return;
	if(size[r_b] >= size[r_a]){
        arr[r_a] = arr[r_b];
		size[r_b] += size[r_a];
	}
	else{
		arr[r_b] = arr[r_a];
		size[r_a] += size[r_b];
	}
}
bool find(int arr[],int a,int b){
	if(root(arr,a)==root(arr,b)) return true;
	return false;
}
void solve(){
	//code begins
	int n;
	cin>>n>>m;
	int arr[n+1],size[n+1];
	init(arr,size,n+1);
	int q;
    cin >> q;
    while(q--){
        char op;
        cin >> op;
        if(op=='A'){
            int x,y;
            cin >> x >> y;
            if(!find(arr,x,y))
                weighted_union(arr,size,x,y);
        }
        else if(op=='E'){
            int x,y;
            cin >> x >> y;
            if(find(arr,x,y)) cout << "Yes" <<'\n';
            else cout << "No" <<'\n';
        }
        else if(op=='S'){
            int x;
            cin >> x;
            cout << size[root(arr,x)] << '\n';
        }
    }
	
		
}
 
int main()
{
	bs;
	solve();
}
2

#pragma GCC target(“avx2”)
was getting the same error in my code from another problem worked for me by removing this line

3

Thanks. I’ve stuck to not using pragmas after that. :confused: