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#include <iostream>
 
using namespace std;
 
int main ()
{
    int ar[2][3];//declaration for 1 row and 2 columns
    int i,j;
    int sum_col2 = 0;
 
 
    for(i=0; i<=1;i++)//loop for 2 rows
    {
        for(j=0;j<=2;j++)//loop for 3 columns
            ar[i][j] = i*10;
 
        }
    }
 
 
    for(i=0; i<=1;i++)
    {
        for(j=0;j<=2;j++)//printing each element of row no. i
            cout <<" " <<ar[i][j];
 
        cout <<endl;//moving to the next line after the current row has been printed cimpletely
 
    }
 
    for(j=0;j<=2;j++)
    {
        sum_col2 = sum_col2 + ar[i][2]
        cout<< "sum of col 2 = " <<sum_col2<<endl;
    }
        return 0;
 
}
 
 
 
 

prog.cpp:21:5: error: expected unqualified-id before ‘for’
     for(i=0; i<=1;i++)
     ^~~
prog.cpp:21:14: error: ‘i’ does not name a type
     for(i=0; i<=1;i++)
              ^
prog.cpp:21:19: error: ‘i’ does not name a type
     for(i=0; i<=1;i++)
                   ^
prog.cpp:30:5: error: expected unqualified-id before ‘for’
     for(j=0;j<=2;j++)
     ^~~
prog.cpp:30:13: error: ‘j’ does not name a type
     for(j=0;j<=2;j++)
             ^
prog.cpp:30:18: error: ‘j’ does not name a type
     for(j=0;j<=2;j++)
                  ^
prog.cpp:35:9: error: expected unqualified-id before ‘return’
         return 0;
         ^~~~~~
prog.cpp:37:1: error: expected declaration before ‘}’ token
 }
 ^

Standard output is empty