Question

i want to print 12e3 instead of 12000

Answer 1

in what programming language?

Answer 2

For C/C++, see printf().

printf("%e", 12000.0);

Answer 3

in c++, you could do this:

#include <iostream>

#define c1 1

#define c2 2

#define c3 'e'

#define c4 3

using namespace std;

int main() {

cout << c1 << c2 << c3 << c4 << endl;

return 0;

}

C version :

#include <stdio.h>
#define c1 1
#define c2 2
#define c3 'e'
#define c4 3
int main() {
  printf("%d%d%c%d\n", c1, c2, c3, c4);
  return 0;
}

Hope this helped.