(PAT)实现一个函数，计算N个整数中所有奇数的和，同时实现一个判断奇偶性的函数

#include <stdio.h>

#define MAXN 10

int even( int n );
int OddSum( int List[], int N );

int main()
{
    
        
    int List[MAXN], N, i;

    scanf("%d", &N);
    printf("Sum of ( ");
    for ( i=0; i<N; i++ ) {
    
    
        scanf("%d", &List[i]);
        if ( even(List[i])==0 )
            printf("%d ", List[i]);
    }
    printf(") = %d\n", OddSum(List, N));

    return 0;
}
int even( int n )
{
    
    
    if( n%2 == 0) return 1;
    else return 0;    
}
int OddSum( int List[], int N )
{
    
    
    int i = 0, c = 0;
    for( ; i < N; i++)
    {
    
    
        if ( even(List[i])==0 )
           c = c + List[i] ;
    }
    return c;
}