Question

How to merge the digits of two numbers in descending order in C

Answer 1

#include <stdio.h>

#define MERGE(x, y) y##x

int main() {
   printf("%d\n", MERGE(23, 91));
   
   return 0;
}
 
 
 
/*
run:
 
9123
 
*/

 

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Answer 2

#include <stdio.h>

#define MERGE(x, y) y##x

int main() {
   int n = MERGE(23, 91);
   
   printf("%d\n", n);
   
   return 0;
}
 
 
 
/*
run:
 
9123
 
*/

 

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