修改文件结构。

POP/06/Exercise03.c

@@ -0,0 +1,35 @@
+#include <stdio.h>
+#include <stdbool.h>
+#include <math.h>
+
+bool isPrime(int toBeTested){
+    int iterationMax = 0, nowCheck = 2;
+    bool isPrime = true;
+    iterationMax = sqrt(toBeTested);
+    do {
+        if (toBeTested % nowCheck == 0) {
+            isPrime = false;
+            break;
+        }
+        nowCheck++;
+    }
+    while (nowCheck <= iterationMax);
+    return isPrime;
+}
+
+int main() {
+    int n, p1;
+    scanf("%d", &n);
+    if (n < 4 || n % 2 == 1) {
+        printf("input error");
+    }
+    else {
+        for (p1=3;;p1+=2) {
+            if (isPrime(p1) && isPrime(n - p1)) {
+                printf("%d = %d + %d", n, p1, n-p1);
+                break;
+            }
+        }
+    }
+    return 0;
+}