上机考试练习题20021程序填空，不要改变与输入输出有关的语句。输入一个正整数repeat(0intmain(void){intrepeat,ri;doublex,y;scanf("%d",&repeat);for(ri=1;ri<=repeat;ri++){scanf("%lf",&x);/*---------*/if(x!=0)y=1/x;elsey=0;printf("f(%.2f)=%.1f\n",x,y);}}20022程序填空，不要改变与输入输出有关的语句。输入华氏温度，输出对应的摄氏温度。计算公式：c=5*(f-32)/9，式中：c表示摄氏温度，f表示华氏温度。输入输出示例：括号内为说明输入150(fahr=150)输出celsius=65#includeintmain(void){intcelsius,fahr;/*---------*/scanf(“%d”,&fahr);celsius=5.0*(fahr-32)/9;printf("celsius=%d\n",celsius);}20023程序填空，不要改变与输入输出有关的语句。输入存款金额money、存期year和年利率rate，根据下列公式计算存款到期时的利息interest(税前)，输出时保留2位小数。interest=money(1+rate)^year-money输入输出示例：括号内为说明输入100030.025(money=1000,year=3,rate=0.025)输出interest=76.89#include#includeintmain(void){intmoney,year;doubleinterest,rate;/*---------*/scanf(“%d%d%lf”,&money,&year,&rate);interest=money*pow((1+rate),year)-money;printf("interest=%.2f\n",interest);}20024程序填空，不要改变与输入输出有关的语句。输入一个正整数repeat(0=0时，f(x)=x^0.5，当x小于0时，f(x)=(x+1)^2+2x+1/x。输入输出示例：括号内是说明输入3(repeat=3)10-0.50输出f(10.00)=3.16f(-0.50)=-2.75f(0.00)=0.00#include#includeintmain(void){intrepeat,ri;doublex,y;scanf("%d",&repeat);for(ri=1;ri<=repeat;ri++){/*---------*/scanf("%lf",&x);if(x>=0)y=sqrt(x);elsey=pow((x+1),2)+2*x+1/x;printf("f(%.2f)=%.2f\n",x,y);}}20025程序填空，不要改变与输入输出有关的语句。输入一个正整数repeat(0intmain(void){intrepeat,ri;doublex,y;scanf("%d",&repeat);for(ri=1;ri<=repeat;ri++){/*---------*/scanf("%lf",&x);if(x!=10)y=x;elsey=1/x;printf("f(%.1f)=%.1f\n",x,y);}}20026程序填空，不要改变与输入输出有关的语句。输入2个整数num1和num2，计算并输出它们的和、差、积、商与余数。输出两个整数的余数可以用printf("%d%%%d=%d\n",num1,num2,num1%num2);输入输出示例：括号内是说明输入53(num1=5,num2=3)输出5+3=85-3=25*3=155/3=15%3=2#includeintmain(void){intnum1,num2;/*---------*/scanf("%d%d",&num1,&num2);printf("%d+%d=%d\n",num1,num2,num1+num2);printf("%d-%d=%d\n",num1,num2,num1-num2);printf("%d*%d=%d\n",num1,num2,num1*num2);printf("%d/%d=%d\n",num1,num2,num1/num2);printf("%d%%%d=%d\n",num1,num2,num1%num2);return0;}20031程序填空，不要改变与输入输出有关的语句。计算表达式1+2+3+......+100的值。输出示例：sum=5050#includeintmain(void){inti,sum;/*---------*/sum=0;for(i=1;i<=100;i++)sum=sum+i;printf("sum=%d\n",sum);}20032程序填空，不要改变与输入输出有关的语句。输入一个正整数repeat(0
