c语言中利用三维数组计算成绩总分数

1、

#include <stdio.h>

int main(void)
{
    int a[2][4][3] ={{{20,10,12},{30,20,10},{20,10,50},{20,10,30}},{{30,10,20},{40,30,10},{10,20,30},{50,10,20}}};
    int sum[4][3] = {0};
    int i, j, k;
    for (i = 0; i < 4; i++)
    {
        for (j = 0; j < 3; j++)
        {
            for (k = 0; k < 2; k++)
            {
                sum[i][j] += a[k][i][j];
            }
        }
    }
    for (i = 0; i < 4; i++)
    {
        for (j = 0; j < 3; j++)
        {
            printf("%d ", sum[i][j]);
        }
        putchar('\n');
    }    
    return 0;
} 

↓ 

#include <stdio.h>

int main(void)
{
    int a[2][4][3] = {{{20,17,20},{30,10,32},{38,10,10},{80,30,10}},{{80,29,10},{20,30,30},{10,20,30},{38,20,10}}};
    int i, j, k;
    int sum[4][3] = {0};
    for (i = 0; i < 4; i++)
    {
        for (j = 0; j < 3; j++)
        {
            for (k = 0; k < 2; k++)
            {
                sum[i][j] += a[k][i][j];
            }
        }
    }
    for (i = 0; i < 2; i++)
    {
        printf("%dst examination\n", i + 1);
        for (j = 0; j < 4; j++)
        {
            for (k = 0; k < 3; k++)
            {
                printf("%d ", a[i][j][k]);
            } 
            putchar('\n');
        }
    }
    
    
    puts("------\n------\n------");
    puts("sum.");
    for (i = 0; i < 4; i++)
    {
        for (j = 0; j < 3; j++)
        {
            printf("%d ", sum[i][j]);
        }
        putchar('\n');
    }
    return 0;
}