Can you help me to edit code?

Question

I try write program by using array of tow deminsions. but when I run code,it output is 10

this is code :
#include<iostream>
using namespace std;
int main(){
int ar [4][5] ={10,20,30,40,50,-10,-20,-30,-40,-50,100,200,300,400,500,-100,-200,-300,-400,-500};
for (int i=0 ; i<4 ; i++)
{
for (int j=0 ; j<5 ; j++)
{
cout<<ar[i][j]<<"\t";
cout<<endl;
return 0;} }}

I want to output form as :
10 20 30 40 50
-10 -20 -30 -40 -50
100 200 300 400 500
-100 -200 -300 -400 -500
I am waiting to reply me

Answer 1

the other issue is the addressing of the array. You need to address them as a list of rows.
int ar [4][5] ={{10,20,30,40,50}{-10,-20,-30,-40,-50}{100,200,300,400,500}{-100,-200,-300,-400,-500}}

Answer 2

return 0 should be after loops, other way you are breaking it

Answer 3

please help figure out whats wrong with this code
#include<iostream>

using namespace std;

int main()
{

int sum;
int diff;
int prod;
int div;
int x,y;
char opt;
char a,b,c,d;

cout <<"Please enter a number:" <<endl;

cin >>x;

cout <<"Enter another number:" <<endl;

cin >>y;

cout <<"Select if you want to add,subtract,multiply or divide the two numbers:" <<endl;

cout <<"a:addition" <<endl;
cout <<"b:subtract" <<endl;
cout <<"c:multiply" <<endl;
cout <<"d:divide" <<endl;

cin >> a;
cin >> b;
cin >> c;
cin >> d;

if (opt = a)
{
sum = x+y;
cout <<"The sum is:" <<sum <<endl;
}

else if (opt = b)
{
diff = x-y;
cout <<"The difference is:" <<diff <<endl;
}

else if (opt = c)
{
prod = x*y;
cout<<"The product is:" <<prod <<endl;
}

else if (opt = d)
{
div = x/y;
cout<<"The divisant is:" <<div <<endl;
}

else
{
cout<<"You did not select any of the above." << endl;
cout<<"Thank you try again." <<endl;
}

/* else
{
cout<<"wahh" <<endl;
}*/
return 0;
}
only the addition option works. this the only way I could get to you ......its basic but need the help thanks