为什么1,4,5函数输出的是零啊

#include <stdio.h>

#include <string.h>

#include <stdlib.h>

#include <iostream>

#include <fstream>

int totalpoint(int score[])

{

    static int totalpoint;

    int i;

    for(i=0;i>9;i++)

    {

        totalpoint=score[i]+totalpoint;

    }

    printf("总分为%d分\n",totalpoint);

    return totalpoint;

}

int toppoint(int score[])

{

    int toppoint=score[0];

    int n;

    for(n=0;n<9;n++)

    {

        if(score[n]>toppoint)

        {

            toppoint=score[n];

        }

    }

    printf("最高分为%d分\n",toppoint);

    return toppoint;

}

int thelowestpoint(int score[])

{

    int lowpoint=score[0];

    int n;

    for(n=0;n<9;n++)

    {

        if(score[n]<lowpoint)

        {

            lowpoint=score[n];

        }

    }

    printf("最低分为%d分\n",lowpoint);

    return lowpoint;

}

int averagepoint(int score[])

{

    int i=totalpoint(score);

    int averagepoint=i/10;

    printf("平均分为%d分\n",averagepoint);

    return averagepoint;

}

int sort(int score[],int left,int right)

{

    int i,j,temp,k,e;

    i=left;

    j=right;

    temp=score[left];

    while(i!=j)

    {

        while(score[i]>temp&&i<j)

        j--;

        while(score[j]<temp&&i>j)

        i++;

        if(i<j)

        {

            k=score[i];

            score[i]=score[j];

            score[j]=k;

        }

    }

    score[i]=temp;

    score[left]=score[i];

    sort(score,left,i-1);

    sort(score,i+1,right);

    for(e=0;e<9;e++)

{

printf("数组排序后：%d",score);

} 

}

int main()

{

    int score[10]={67,98,75,63,82,79,81,91,66,84};

    totalpoint(score);

    toppoint(score);

    thelowestpoint(score);

    averagepoint(score);

    sort(score,0,9);

    return 0;

}