Question

我正在编写一个使用2D数组来存储房屋号码和房子中孩子数量的代码，但是我对for循环没什么问题，我真的不明白问题是什么。阵列的尺寸是作为列数的房屋的数量（这是用户输入），并且用户仅将两行作为孩子的数量输入到第二行。代码如下所示：

#include <stdio.h>
#include <stdlib.h>

int main()
{
    int i=0;
    int j=0;
    int houses=0;
    int kids=0;
    printf("How many houses are there in the street?\n");
    scanf("%d", &houses);
    int KidsInStreet[houses][2];//Columns are the houses and the rows are 
the number of kids
    for(i=0;i<houses;i++)
    {
        for(j=0;j<2;j++)
        {
            printf("Enter the value for KidsInStreet[%d][%d]:\n", i, j);
            scanf("%d", &KidsInStreet[i][j]);
        }
    }
    for (i=0;i<houses;i++)
    {
        for(j=0;j<2;j++)
        {
            printf("House number:%d. Number of kid(s):%d\n", KidsInStreet[i]
[j]);
        }
    }


        return 0;
}

Answer 1

如果我理解了这个要求，你就不需要2个for循环。所以你的代码如下：

#include <stdio.h>
#include <stdlib.h>
int main()
{
 int i=0;
 int j=0;
 int houses=0;
 int kids=0;
 printf("How many houses are there in the street?\n");
 scanf("%d", &houses);
 int KidsInStreet[houses][2];//Columns are the houses and the rows are the number of kids

for(i = 1; i <= houses; i++)
{
    KidsInStreet [i][1] = i;
    printf("Enter the value for KidsInStreet[%d]:\n", i);
    scanf("%d", &KidsInStreet[i][2]);
}

for (i = 1; i <= houses; i++)   
{
    printf("House number:%d. Number of kid(s):%d\n", KidsInStreet[i][1], KidsInStreet[i][2]);   
}



}

在C中创建，存储和输出2D数组

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