明解Ｃ言語 入門編 > 5. 配列 > 素数を求める (ver.4) C #include <stdio.h> int main(int argc, char* argv[]) { int i, no; int prime[15]; int ptr = 0; unsigned long counter = 0; prime[ptr++] = 2; prime[ptr++] = 3; for (no = 5; no <= 30; no += 2) { for (</stdio.h>…