#include <stdio.h>

int main() {
    int arr[5] = {0,0,3,0,0}; //배열 선언

    //반복문으로 배열 초기화
    for (int i = 0;i<5;i++){
        arr[i] = 0;
    }

    arr[0] = 10;
    arr[1] = 20;

    printf("%d\n", arr[0]);

    //반복문으로 배열 출력
    for(int i=0;i<5;i++){
        printf("%d ", arr[i]);
    }
    printf("\n------------------------------\n");
    char arr_c[10] = "algo";
    for(int i = 0;i<10;i++){
        printf("%c", arr_c[i]);
    }
    printf("\n------------------------------\n");
    char arr_c2[10] = "algo";
    for(int i = 0;i<10;i++){
        printf("%s", arr_c2);
    }
    printf("\n------------------------------\n");
    int arr2[10];
    for(int i=0;i<10;i++){
        scanf("%d", &arr2[i]);
    }
    
    for(int i=0;i<10;i++){
        printf("%d", arr2[i]);
    }
    printf("\n------------------------------\n");
    char arr_c3[10];
    scanf("%s", arr_c3);
    printf("%s", arr_c3);
    printf("\n------------------------------\n");
    char arr_c4[10];
    for(int i=0;i<10;i++){
        scanf("%c", &arr_c4[i]);
        printf("%c", arr_c4[i]);
    }
}

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