题目内容

以下程序的运行结果是______________。#define A4#define B(x) A*(x)/2#includevoid main(){float c,a=4.5;c=B(a);printf("%5.1f\n",c);}

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下面程序计算10个同学一科成绩的平均分。#include_______ average(float array[10]){int i;float sum=array[0];for(i=1;i<10;i++)sum+=array[i];return sum/10;}void main(){float score[10],aver;int i;for(i=0;i<10;i++)scanf("%f",____________);aver=_____________;printf("average score is %5.2f\n",aver);}

#include void fun2(char a,charB) { printf("%c %c",a,b);} char a='A',b='B'; void fun1(){ a='C';b='D'; } main() { fun1( ); printf("%c %c ",a,b); fun2('E','F');} 程序的运行结果是

A B E F
B. C D E F
C. A B C D
D. C D A B

#include int fun(int x[],int n) { static int sum=0,i; for(i=0;i

A. 55
B. 50
C. 45
D. 60

include int fun(int n){ if(n==1) return 1; else return(n+fun(n-1)); } main(){ int x; scanf("%d",&x); x=fun(x); printf("%d\n",x);} 执行程序时,给变量x输入10,程序的输出结果是

A. 55
B. 54
C. 60
D. 45

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