c语言 运行错误 帮忙改改 速度的来

#include <stdio.h>
int i,chinese[5],math[5],flanguage[5],computer[5];
long number[5];
char name[5];
void main()
{
int n,t;
void shuru(long a,char b,int c,int d,int e,int f);
void chaxun(long a,char b,int c,int d,int e,int f);
void xiugai(long a,char b,int c,int d,int e,int f);
void shuchu(long a,char b,int c,int d,int e,int f);
void tuichu(long a,char b,int c,int d,int e,int f);
printf("按1继续，按0退出\n");
scanf("%d",&t);
while(t!=0)
{
printf("请选择操作\n1 输入成绩\n 2 查询成绩\n 3 修改成绩\n 4 输出成绩细目\n 5 退出\n");
scanf("%d",&n);
switch(n)
{
case 1: shuru(number[i],name[i],chinese[i],math[i],flanguage[i],computer[i]);break;
case 2: chaxun(number[i],name[i],chinese[i],math[i],flanguage[i],computer[i]);break;
case 3: xiugai(number[i],name[i],chinese[i],math[i],flanguage[i],computer[i]);break;