使用malloc於執行期間動態決定陣列長度

/*
Windows 10 作業系統
Visaul Studio 2017
*/
#define _CRT_SECURE_NO_WARNINGS

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

int main(int argc, char *argv[]) {
    system("color f0");

    int size = 0, sum = 0;

    printf("Enter array size : ");
    scanf("%d", &size);

    int *array = NULL;
    array = (int*)malloc(size * sizeof(int));

    if (NULL == array) {
        printf("Error, memory access failure.\n");
        system("pause");
        return -1;
    }
    else {
        for (int i = 0; i < size; i++) {
            printf("Input array[i] value : ");
            scanf("%d", &array[i]);
        }
        for (int i = 0; i < size; i++) {
            sum = sum + array[i];
        }
        printf("sum = %d\n", sum);
    }
    free(array);

    system("pause");
    return 0;
}