在 C 中创建、存储和输出二维数组

Question

我正在编写一个代码，使用二维数组来存储门牌号和房子里的 child 数量，但我在 for 循环方面遇到了一些问题，而且我不太明白问题是什么。数组的维度是房屋的数量即列数(这是用户输入)，并且只有两行作为 child 的数量由用户输入到第二行。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

如果我很好地理解了这个要求，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]);   
}



}