Error in code while rumming

#1

#include
using namespace std;
int main()
{
long long int n;
int i, m=0, flag=0;
cout << "Enter the Number to check Prime: ";
cin >> n;
m=n/2;
for(i = 2; i <= m; i++)
{
if(n % i == 0)
{
cout<<“Number is not Prime.”<<endl;
flag=1;
break;
}
}
if (flag==0)
cout << “Number is Prime.”<<endl;
return 0;
}

#2

@uks.2610
you dont need to print Enter the prime number and you only need to print Prime or Not Prime please read the question carefully for I/O
please refer to this code if something’s unclear

#3

Compiling failed with exitcode 1, compiler output: prog.cpp: In function ‘int main()’: prog.cpp:6:3: error: expected unqualified-id before ‘int’ int i, m=0, flag=0; ^~~ prog.cpp:9:3: error: ‘m’ was not declared in this scope m=n/2; ^ prog.cpp:10:7: error: ‘i’ was not declared in this scope for(i = 2; i <= m; i++) ^ prog.cpp:15:11: error: ‘flag’ was not declared in this scope flag=1; ^~~~ prog.cpp:15:11: note: suggested alternative: ‘float’ flag=1; ^~~~ float prog.cpp:19:7: error: ‘flag’ was not declared in this scope if (flag==0) ^~~~ prog.cpp:19:7: note: suggested alternative: ‘float’ if (flag==0) ^~~~ float

#4

please see itcthis is coming now

#5

have you checked the code provided by me ?

#6

why u have not written iostream

#7

Hello @uks.2610,

Because he has included: #include<bits/stdc++.h>
The <bits/stdc++. h> is a header file. This file includes all standard library. Sometimes in some coding contests, when we have to save time while solving, then using this header file is helpful.

So, this file itself includes iostream headerfile.

Hope, this will help.

#8

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