C语言编程:编写函数分别完成求和、求平均值及求高于平均值的数据及个...答:int sum(int a[],int n){int i,sum;for(i=0,sum=0;i<n;i++)sum+=a[i];return sum;}double average(int a[],int n){int i,sum;for(i=0,sum=0;i<n;i++)sum+=a[i];return 1.0*sum/n;}int over_avg(int a[],int n, double avg){int i,count;for(i=0,count=0...
求解C语言编程1~6答:int a,b,c;printf("input 1,2,3\n");scanf("%d,%d,%d",&a,&b,&c);printf("%d\n\n",a+b+c);} fflush(stdin);//part4:{ char s[60];int L;char fm[30];printf("input one line string: hello\n");fgets(s,59,stdin);L=strlen(s);printf("string length is %d\n",...