ppcm_bis.c

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <stdbool.h>

void main() {
   int n = 15,m = 12;
   printf("Entrez n et m:\n");
   scanf("%d %d",&n,&m);
   int tmp_n = n,tmp_m = m;

/*
   while (tmp_n != tmp_m) {
      if (tmp_n < tmp_m) {
         tmp_n += n;
      } else {
         tmp_m += m;
      }
   }

   while (true) {
      if (tmp_n < tmp_m) {
         tmp_n += n;
      } else if (tmp_n > tmp_m) {
         tmp_m += m;
      } else {
         break;
      }
   }
*/

   do {
      if (tmp_n < tmp_m) {
         tmp_n += n;
      } else { 
         tmp_m += m;
      } 
   } while (tmp_n != tmp_m);

   printf("Le ppcm de %d et %d est %d\n",n,m,tmp_m);
}