Why my code getting WA?

#1

#include<bits/stdc++.h>
using namespace std;
#define ll long long
bool checksum(int a[],int n)
{
unordered_set s;
int pre=0;
for(int i=0;i<n;i++)
{
pre += a[i];
if(pre=0 or s.find(pre)!=s.end())
{
return true;

     }
         s.insert(pre);
           for(auto it=s.begin();it!=s.end();it++)
         {
             cout<<*it;
         }
         cout<<endl;
     }
     return false;

}
int main()
{
//lets play

int n;
cin>>n;
int a[n];
for(int i=0;i<n;i++)
{
cin>>a[i];

}
if(checksum(a,n))
{
cout<<“true”;
}
else
{
cout<<“false”;
}
}

#2

please reply as soon as possible…

#3

#include<bits/stdc++.h>
using namespace std;
#define ll long long
bool checksum(int a[],int n)
{
unordered_set s;
int pre=0;
for(int i=0;i<n;i++)
{
pre += a[i];
if(pre=0 or s.find(pre)!=s.end())
{
return true;

     }
         s.insert(pre);
         
     }
     return false;

}
int main()
{
//lets play

int n;
cin>>n;
int a[n];
for(int i=0;i<n;i++)
{
cin>>a[i];

}
if(checksum(a,n))
{
cout<<“true”;
}
else
{
cout<<“false”;
}
}

#4

send your code on coding blocks ide

#5

HOW_______________________________________

#6

Paste your code on this https://ide.codingblocks.com/
press ctrl+S
then copy the URL and send here

#7

Hey ,error is in this line
it should be pre==0
If this doen’t work then send the code on ide.

1 Like
#8

THANKX’’’’’’’’’’’’’’’’’’

1 Like
#10

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