c语言期末上机考试复习题20题答案

#include<stdio.h>floata,b,c,t;scanf("%f,%f,%f",&a,&b,&c);{t=a;a=b;b=t;}{t=a;a=b;b=t;}printf("%f%f%f\n",a,b,c);#include<stdio.h>printf("%c\n",c);#include<stdio.h>#include<math.h>floata,b,c,n,m,t;scanf("%f,%f,%f",&a,&b,&c);t=sqrt(m);printf("X1=%fX2=%f\n",n+t,n-t);printf("X1=X2=%f\n",n);t=sqrt(-m);printf("X1=%f+%fiX2=%f-%fi\n",n,t,n,t);#include<stdio.h>scanf("%d",&y);if((y%4==0)&&(y%100!=0)||(y%100==0)&&(y%400==0))#include<stdio.h>scanf("%d",&f);case9:printf("A\n");break;case8:printf("B\n");break;case7:printf("C\n");break;case6:printf("D\n");break;default:printf("E\n");#include<stdio.h>intt,a,b,c;scanf("%d",&t);b=t/10%10;printf("%d\n",c);printf("%d%d\n",c,b);printf("%d%d%d\n",c,b,a);#include<stdio.h>inta[10],m,n,i=0;scanf("%d",&a[i]);scanf("%d",&a[i]);#include<stdio.h>if((i%5==0)&&(i%7==0))printf("%dprintf("\n");#include<stdio.h>for(j=1,n=0;j<=i;j++)printf("%d",i);printf("\n");#include<stdio.h>#include<stdio.h>#include<stdio.h>intn,s=1,m=0,i,j;scanf("%d",&n);for(j=1;j<=i;j++)printf("值为%d。\n",m);#include<stdio.h>inta,b,c,m=0,i;printf("%d",i);printf("\n");#include<stdio.h>for(j=1;j<=(4-i);j++)for(j=1;j<=(2*i-1);j++)printf("\n");#include<stdio.h>for(j=1;j<=i;j++)printf("%d×%d=%2d",j,i,i*j);printf("\n");#include<stdio.h>inta[8],i,j,t;printf("请输入a[%d]的值",i);scanf("%d",&a[i]);for(j=0;j<=(7-i);j++){t=a[j];a[j]=a[j+1];a[j+1]=t;}printf("%d",a[i]);printf("\n");#include<stdio.h>scanf("%d,%d",&m,&n);for(j=0;j<m;j++)scanf("%d",&a[i][j]);for(j=0;j<m;j++)for(j=0;j<n;j++)printf("%d",b[i][j]);printf("\n");#include<stdio.h>scanf("%d",&n);for(j=0;j<n;j++)scanf("%d",&a[i][j]);t=t+a[i][i]+a[i][n-1-i];#include<stdio.h>intFibonacci[20],i,j;Fibonacci[i]=Fibonacci[i-1]+Fibonacci[i-2];printf("%d",Fibonacci[i]);printf("\n");#include<stdio.h>return(m);scanf("%d",&n);printf("%d！的值为%d\n",n,y);printf("x=%d,y=%d,z=%d",x,y,z);结果：x=1,y=0,z=0printf("x=%d,y=%d,z=%d",x,y,z);结果：x=1,y=0,z=1（），所以(