whiteboard

#include<stdio.h>
void main(){
    int coe1a=1,coe2b=2,coe3c=3;
    int QR=coe2b*coe2b-4*coe1a*coe3c;
    QR!=0?(QR>0?
                printf("distinct root")
                :printf("no real root")
          )
         :printf("identical root");
}