编辑代码

#include <stdio.h>  
  
int szsum(int a[], int n) {  
    int sum = 0;  
    for(int i = 0; i < n; i++) {  
        sum += a[i];  
    }  
    return sum;  
}  
  
int main() {  
    int a[3] = {2, 4, 6};  
    printf("%d\n", szsum(a, 3));  
    return 0;  
}