printing on screen, some Alphabets using Turbo C

[furqankaimkhani]

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Code C - [expand]
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#include<stdio.h>
#include<conio.h>
 
void main(void)     //|_Muhammad Furqan__|
{
int j = 0;              //|____10-2-2013_____|
 clrscr();
for(int i=1;i<=7;i++)   
{
for(int n=65 ; n<72 ; n++)  // Explanation:
       printf("%c ",n);             // 'j' is for putting gap(the gap pyramid),
n=n-2;              //  'i' is for printing 7 rows and
for(j;j<i;j++)          // 'n' is for printing the Alphabets.
{                
if (j=0)                    // Problem: This "[B]if[/B]" is the stuck point.
printf("G ");           // When run, this program gets hanged
printf("\b\b  ");               // after printing one row.
}                       // apparently, without any Syntax Error.
for( n ; n>64 ; n--)        
printf("%c ",n);        
printf("\n");
}
getch();
return;
}

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[alexan_e]

if (j=0) // Problem: This "if" is the stuck point.

It is because you are using an assignment operator (=) instead of comparison (==)

- - - Updated - - -

Note that

if(j = 0)

Assigns 0 to variable j and then evaluates j.
if(0) is always false