#include <stdio.h>
#include <conio.h>
#define ARR_LEN 255 /* 数组长度上限 */
int main (void) {
float score[ARR_LEN][ARR_LEN] = {{87,88,93,83},
{76,78,89,93},
{97,89,96,88},
{54,62,71,68},
{65,79,70,69}};
char subject[ARR_LEN][ARR_LEN] = {"科目一","科目二","科目三","科目四"};
int stuCnt = 5, subCnt = 4;
float avgStu[ARR_LEN], avgSub[ARR_LEN];
int i, j;
printf ("#\t");
for (j=0; j<subCnt; j++)
printf ("%s\t", subject[j]);
putchar ('\n');
for (i=0; i<stuCnt; i++) {
printf ("%d\t", i+1);
for (j=0; j<subCnt; j++) {
printf ("%.2f\t", score[i][j]);
}
putchar ('\n');
}
putchar ('\n');
for (j=0; j<subCnt; j++) {
avgSub[j] = 0;
for (i=0; i<stuCnt; i++) {
avgSub[j] += score[j][i];
}
avgSub[j] /= stuCnt;
}
printf ("\t\t");
for (j=0; j<subCnt; j++)
printf ("%s\t", subject[j]);
putchar ('\n');
printf ("各科目均值\t");
for (j=0; j<subCnt; j++)
printf ("%.2f\t", avgSub[j]);
putchar ('\n');
putchar ('\n');
for (i=0; i<stuCnt; i++) {
avgStu[i] = 0;
for (j=0; j<subCnt; j++) {
avgStu[i] += score[i][j];
}
avgStu[i] /= subCnt;
}
printf ("\t\t");
for (i=0; i<stuCnt; i++)
printf ("%d\t", i+1);
putchar ('\n');
printf ("各学生均值\t");
for (i=0; i<stuCnt; i++)
printf ("%.2f\t", avgStu[i]);
putchar ('\n');
getch (); /* 屏幕暂留 */
return 0;
}
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