exp05_04.c

《C语言程序设计教程、实验与练习》 源文件下载

#include <stdio.h>
#include <conio.h>
#define  STUNUM  3
#define  COURSENUM  3

main()
{
 float average[COURSENUM];
 int  totalmark[STUNUM];
 int  mark[STUNUM][COURSENUM];
 int  i,j;

 clrscr();
 for(i=0;i<STUNUM;i++)
   for(j=0;j<COURSENUM;j++)
    {
      printf("input the mark of %dth course of %dth student:",j+1,i+1);
      scanf("%d",&mark[i][j]);
      }
 for(i=0;i<STUNUM;i++)
   {
    totalmark[i]=0;
    for(j=0;j<COURSENUM;j++)
      totalmark[i]+=mark[i][j];
     }

 for(i=0;i<COURSENUM;i++)
  {
   average[i]=0;
   for(j=0;j<STUNUM;j++)
     average[i]+=mark[j][i];
   average[i]/=STUNUM;
    }
 printf("%5s%5s%5s%5s%5s\n","No.","C1","C2","C3","total");
 for(i=0;i<STUNUM;i++)
  {
   printf("%5d",i+1);
   for(j=0;j<COURSENUM;j++)
     printf("%5d",mark[i][j]);
   printf("%5d\n",totalmark[i]);
   }
 printf("aver:");
 for(i=0;i<COURSENUM;i++)
    printf("%5.1f",average[i]);
 printf("\n");
 }