I have written this code in ciel and A-B output is right but it say wrong answer help

#include<stdio.h>

int main()

{

int a,b,c,d[10],i=0;

scanf("%d%d",&a,&b);

c=a-b;

while(c!=0)

{

d[i]=c%10;

c=c/10;

i=i+1;

}

d[i-1]=1;

for(int j=i-1;j>=0;j–)

{

printf("%d",d[j]);

}

return 0;

}

You just changed the most significant digit i.e the left most digit to 1 …

But what if it was already one ??

For example 43-31 = 12 now u did d[i-1]=1 (which was already one)

So u didn’t even changed the number

Hence replace

`d[i-1]=1;`

in your code with,

`if(d[i-1]!=1) d[i-1]=1; else d[i-1]=2; `

And you are ready to go…