2020-03-30

数组

1.

#include<stdio.h>

int main(){

int a ;

int d;

scanf("%d",&a);

if(a>=90&&a<=100){

d=1;

}else if(a>=80&&a<=89){

d=2;

}else if(a>=70&&a<=79){

d=3;

}else if(a>=60&&a<=69){

d=4;

}else if(a<60){

d=5;

}

switch(d){

case 1:printf("A");break;

case 2:printf("B");break;

case 3:printf("C");break;

case 4:printf("D");break;

case 5:printf("不及格");break;

}

}

2.

#include<stdio.h>

int main(){

int i;

float s=0;

float max=0;

float  b[10];

for(i=0;i<10;i++){

scanf("%f",&b[i]);

s=s+b[i];

if(max<b[i]){

max=b[i];

}

}

printf("数组的和:%f\n",s);

printf("数组的平均值:%f\n",s/10);

printf("数组的最大值:%f",max);

}

3.

#include<stdio.h>

int main(){

int i;

int a[]={8,5,6,7,1,2,3,4};

int b[8]={};

for(i=7;i>=0;i--){

b[7-i]=a[i];

printf("%d,",b[7-i]);

}

}