int main() { int i ,a[i]; i = 0; a[i] = 10; cout<< a[i] << endl

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int main()
{
int i ,a[i];
i = 0;
a[i] = 10;
cout<< a[i] << endl;
return 0;

}

What will be output of this program?

Question Posted / sachinmundhra

11 Answers
19561 Views
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int main() { int i ,a[i]; i = 0; a[i] = 10; cout<< a[i] << endl; return 0; } ..

Answer / sachinmundhra

This will not get compile.

int i , a[i] ; // This statement will given error. Constant
expression required.

Is This Answer Correct ?

38 Yes

3 No

int main() { int i ,a[i]; i = 0; a[i] = 10; cout<< a[i] << endl; return 0; } ..

Answer / kamal

Is This Answer Correct ?

30 Yes

9 No

int main() { int i ,a[i]; i = 0; a[i] = 10; cout<< a[i] << endl; return 0; } ..

Answer / ravinder kumar(omnietysolution

Error in program

Is This Answer Correct ?

10 Yes

3 No

int main() { int i ,a[i]; i = 0; a[i] = 10; cout<< a[i] << endl; return 0; } ..

Answer / ramesh kumar

in array we can must enter size integer...
not as variable type like i
thats why it gives an error

Is This Answer Correct ?

9 Yes

2 No

int main() { int i ,a[i]; i = 0; a[i] = 10; cout<< a[i] << endl; return 0; } ..

Answer / mohammed afroz

There are compile time error in this program. Because array
can declare with a constant value.

Is This Answer Correct ?

7 Yes

2 No

int main() { int i ,a[i]; i = 0; a[i] = 10; cout<< a[i] << endl; return 0; } ..

Answer / vikas

Index variable of any array should be integer constant.
but in this case i is not constant so it is a error

Is This Answer Correct ?

5 Yes

1 No

int main() { int i ,a[i]; i = 0; a[i] = 10; cout<< a[i] << endl; return 0; } ..

Answer / ramez

Constant expression will be required here...

Is This Answer Correct ?

4 Yes

1 No

int main() { int i ,a[i]; i = 0; a[i] = 10; cout<< a[i] << endl; return 0; } ..

Answer / rajesh

It will give segmentation fault(core dumped) - runtime error

This is not the way of declaring an array...a slight change
in program can correct it. Code below...

int main()
{
int i=0 ,a[i];
// i = 0;
a[i] = 10;
cout<< a[i] << endl;
return 0;
}
output : 10

please initialise the value of i before putting it in array
a[i]..this code will work fine and will give the output as 10.