Segmentation fault two dimensional array - c++

Question

i am new to programing and i am trying to understand the two dimensional array. i wrote this code to just test my code to see if it working or not. unfortunately, i am getting a segmentation error. i know that means that something i wrote is unreadable for the compiler but i do not know what is it. because everything seems fine to me.
#include<iostream>
using namespace std;
int main(){
int col, row,i;
int **array;
cout << "How many rows?\n";
cin >> row;
cout << "How many colomns\n";
cin >> col;
cout << "!!!!!!!!!!!!";
array = new int*[row];
for (int i = 0;i<row;i++){
array[i] = new int[col];
}
cout << "!!!!!!!!!!!!";
for( i=0; i<row; i++){
int x=1;
array[0][i]= x;;
x++;
}
cout << "!!!!!!!!!!!!";
cout << array[row][col];
for(i=0; i<row; i++){
delete [] array[i];
delete [] array;
}
return 0;
}
the ERROR is:
"
How many rows?
3
How many colomns
3
Segmentation fault (core dumped)
"

Answer 1

array[0][i]= x; looks wrong. It should be:
array[i][0]= x;
First index is for row and second for col.
Later cout << array[row][col]; is also wring as row is out of range.
The way you delete the array is also wrong, it should be:
for(i=row - 1; i >= 0; --i){
delete [] array[i];
}
delete [] array;

Answer 2

cout << array[row][col];
Out of range in each of the two dimensions, as others have said.
for(i=0; i<row; i++){
delete [] array[i];
delete [] array;
}
You're deleting array's elements three times, once for each element. This is good. You're also deleting array itself three times. This is dangerous and wrong.

Answer 3

so it should be like this?
#include<iostream>
using namespace std;
int main(){
int col, row,i;
int **array;
cout << "How many rows?\n";
cin >> row;
cout << "How many colomns\n";
cin >> col;
array = new int*[row];
for (int i = 0;i<row;i++){
array[i] = new int[col];
}
cout << "!!!!!!!!!!!!";
for( i=0; i<row; i++){
int x=1;
array[i][0]= x;;
x++;
}
cout << "!!!!!!!!!!!!";
for(i=0; i<row; i++){
for(int j=0; j<col; j++){
array[i][j];
}
}
cout << array[row][col];
for(i=0; i<row; i++){
delete [] array[i];
delete [] array;
}
return 0;
}

Answer 4

This line is out of range cout << array[row][col];.If you want to print the last element then change this line to cout << array[row-1][col-1];
As others mentioned the below is code for deleting the allocated memory
for(i=0; i <row; i++){
delete [] array[i];
}
delete [] array;
Also in your code below x is always going to be 1 , x++ is noneffective.
for( i=0; i<row; i++){
int x=1;
array[0][i]= x;
x++;
}
if you want to increment x for each row then initialize x outside the loop
like this
int x=1;
for( i=0; i<row; i++){
array[0][i]= x;;
x++;
}