数组中非空的C代码计数元素

#include <stdio.h>

int countNonZeroElements(int arr[], int size) {
    int count = 0;
    for (int i = 0; i < size; i++) {
        if (arr[i] != 0) {
            count++;
        }
    }
    return count;
}

int main() {
    int arr[] = {0, 1, 0, 3, 12};
    int size = sizeof(arr) / sizeof(arr[0]);
    int nonZeroCount = countNonZeroElements(arr, size);
    printf("Number of non-zero elements: %d\n", nonZeroCount);
    return 0;
}

int safeAccess(int arr[], int size, int index) {
    if (index >= 0 && index < size) {
        return arr[index];
    } else {
        printf("Index out of bounds!\n");
        return -1; // 或者其他错误处理
    }
}

int* dynamicArray = (int*)malloc(10 * sizeof(int));
// 使用dynamicArray
free(dynamicArray); // 释放内存