编程题目求解

#include "stdio.h"
int score[3];//score[0]为数学，score[1]英语，score[2]计算机
float average;
int sum=0;
for(int i=0;i<3;i++)
scanf("%d",&score[i]);
for(int j=0;j<3;j++)
sum+=score[j];
average=sum/3;
printf("average=%f",average);

#include

int main()
{
int math,eng,comp;
printf("math=");
scanf("%d",&math);
printf("eng=");
scanf("%d",&eng);
printf("comp=");
scanf("%d",&comp);
printf("average=%.2lf\n",(math+eng+comp)/3.0);
}

#include
void main()
{
int math,eng,comp;
float average;
scanf("%d %d %d",&math,&eng,&comp);
average=(math+eng+comp)/3;
printf("math=%d\neng=%d\ncomp=%d\n",math,eng,comp);
printf("average=%4.2f\n",average);
}