![](https://cos-cdn.shuashuati.com/pipixue-wap/2020-1230-1107-56/ti_inject-812ce.png)
下面程序的功能是将从键盘输入的偶数写成两个素数之和。请选择填空。( ) #include
#include
int main() { int a,b,c,d; scanf("%d",&a); for (b=3; b<=a/2; b+=2) { for(c=2; c<=sqrt(b); c++) if(b%c= =0) break; if(c>sqrt(b)) d=【1】; else break; for (c=2;c<=sqrt(d);c++) if(d%c= =0)break; if (c>sqrt (d)) printf("%d=%d+%d\n",a,b,d); } return 0; }