#include <stdio.h>

int main() {
    int arr[2][4]={0};
    
    printf("arr[0]의 크기:%zu\n", sizeof(arr[0]));
    printf("arr[0][1]의 크기:%zu\n\n", sizeof(arr[0][1]));
    

    int arr1[2][3];

    for (int i=0; i<2; i++) {
        for (int j=0; j<3; j++) {
            scanf("%d", &arr1[i][j]);
        }
    }

    for (int i=0; i<2; i++) {
        for (int j=0; j<3; j++) {
            printf("arr1[%d][%d]=%d\n", i, j, arr1[i][j]);
        }
    }

    //수정
    arr1[0][0]=10;
    
    printf("배열 arr1의 0행 0열 요소를 10으로 수정\n");
    printf("arr1[0][0]=%d\n\n", arr1[0][0]);


    
    char arr2[4][10]={"hallo", "DLAB", "NICE"};

    for(int i=0; i<4;i++){
        printf("%s\n", arr2[i]);
    }
    
    arr2[0][1]='e';

    printf("%s\n", arr2[0]);
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    return 0;
}

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