Please point out what's wrong with this code

Question

#include <iostream>
using namespace std;

int main() {
float marks[50][3];
int i,j;
int num,nom; /*size for row and column*/
cin>>num>>nom;
for(i=0;i<num;i++)
{
for(j=0;j<nom;j++)
cin>>marks[i][j];
}

for(i=0;i<num;i++)
{
for(j=0;j<nom;j++)
cout<<marks[i][j];
}
return 0;
}

Answer 1

It's running perfectly
There are no errors just give number of inputs correctly
for ex 1
2
3
4
and output will be 34

Answer 2

try using <iostream .h> as I don't see other errors anymore

Answer 3

check your cins and couts

Answer 4

one should be "<<" the other should be ">>"

Answer 5

for cout "<<" this cascading sign is used