#include <stdio.h> #include <stdlib.h> /* Puzzle A03 -- print the even integers 0, 2, 4, 6, ... , 20, one per line */ int main(int argc, char *argv[]) { int j; for (j=0; j<=20; j+=2 ) { printf("%3d\n", j); } system("PAUSE"); return 0; }
Comments: In some situations it might be more sensible to do this:
for (j=0; j<=10; j++ ) { printf("%3d\n", 2*j); }
This is a matter of taste, and context.