题目内容

若运行以下程序时输入：6 3 1<回车>,则程序的运行结果是。#include #include int main ( ){double a,b,c,disc,x1,x2,p,q;scanf("%lf%lf%lf",&a,&b,&c);disc=bb-4a*c;if (disc<0)printf("This equation hav't real roots\n");else{ p=-b/(2.0a);q=sqrt(disc)/(2.0a);x1=p+q;x2=p-q;printf("real roots:\nx1=%7.2f\nx2=%7.2f\n",x1,x2);}return 0;}

查看答案

搜索结果不匹配？点我反馈

更多问题

若运行以下程序时输入：2 4 1<回车>,则程序的运行结果是。#include #include int main ( ){double a,b,c,disc,x1,x2,p,q;scanf("%lf%lf%lf",&a,&b,&c);disc=bb-4a*c;if (disc<0)printf("This equation hav't real roots\n");else{ p=-b/(2.0a);q=sqrt(disc)/(2.0a);x1=p+q;x2=p-q;printf("real roots:\nx1=%7.2f\nx2=%7.2f\n",x1,x2);}return 0;}

若运行以下程序时输入：3.6,-3.2<回车>,则程序的运行结果是。#include int main(){float a,b,t;scanf("%f,%f",&a,&b);if(a>b){t=a;a=b;b=t;}printf("%5.2f,%5.2f\n",a,b);return 0;}

若运行以下程序时输入：3,7,1<回车>,则程序的运行结果是。#include int main(){float a,b,c,t;scanf("%f,%f,%f",&a,&b,&c);if(a>b){t=a;a=b;b=t;}if(a>c){t=a;a=c;c=t;}if(b>c){t=b;b=c;c=t;}printf("%5.2f,%5.2f,%5.2f\n",a,b,c);return 0;}

若运行以下程序时输入：A<回车>,则程序的运行结果是。#include int main(){char ch;scanf("%c",&ch);ch=(ch>='A' && ch<='Z') ? (ch+32) : ch;printf("%c\n",ch);return 0;}