#include <stdio.h>

int main() {
    int arr[6] = {51360, 969, 97, 203789, 40234, 9168};
    for (int i=0; i<6; i++){
        printf("%d ", arr[i]);
    }

    //배열 크기 함수
    printf("\n%zu\n", sizeof(arr));
    printf("%zu\n", sizeof(arr)/sizeof(arr[0]));
    



    int arrr[ ]={10, 20, 30};

    for (int i=0;i<sizeof(arrr)/sizeof(arrr[0]);i++){
        printf("arrr[%d] = %d\n", i, arrr[i]);
    }




    
    int grade[6]={100, 90, 88, 95, 76, 85};
    for (int i=0; i<6; i++){
        printf("%d ", grade[i]);
    }

    int a = sizeof(grade)/sizeof(grade[0]);
    int b;
    for (int i = 0; i < a; i++) {
        b += grade[i]; // sum = sum + arr[i]
    }
    printf("평균 : %d\n", b/a);

        
    return 0;
}