为什么我的主函数不能成功调用下面的函数啊，还是哪里写错了，大家help一下(语言-c语言)

Question

#include <stdio.h>
#define N 100
void find_two_largest( int a[],int n,int *largest,int *second_largest);
   int main(void)
{
    int a[N], len;
    int largest, second_largest;
    scanf("%d", &len);
    for (int i = 0; i < len; i++)
    {
        scanf("%d", &a[i]);
    }
    find_two_largest(a,len,&largest, &second_largest);
    printf("%d %d\n", largest, second_largest);
    return 0;
}
void find_two_largest( int a[100], int n, int *largest, int *second_largest)
{
    int i;
    scanf("%d",&n);
    for (i=0;i<n;i++)
    scanf("%d",&n);
    *largest = *second_largest = a[0];
    for(i=0;i<n;i++)
    if(a[i]>*largest)
    *largest =a[i];
    for(i=0;i<n;i++)
    if(a[i]!=*largest&&a[i]>*second_largest)
    *second_largest = a[i]; 
}

Answer 1

void find_two_largest()函数里再次输入数组元素就多余了，修改如下，供参考：

#include <stdio.h>
#define N 100
void find_two_largest( int a[],int n,int *largest,int *second_largest);
   int main(void)
{
    int a[N], len;
    int largest, second_largest;
    scanf("%d", &len);
    for (int i = 0; i < len; i++)
    {
        scanf("%d", &a[i]);
    }
    find_two_largest(a,len,&largest, &second_largest);
    printf("%d %d\n", largest, second_largest);
    return 0;
}
void find_two_largest( int a[100], int n, int *largest, int *second_largest)
{
    int i;
       //scanf("%d",&n);     这三行多余了。
       //for (i=0;i<n;i++)
       //scanf("%d",&n);
    *largest = *second_largest = a[0];
    for(i=0;i<n;i++)
        if(a[i]>*largest)
            *largest = a[i];
    for(i=0;i<n;i++)
        if(a[i]!=*largest&&a[i]>*second_largest)
            *second_largest = a[i];
}