Mọi người giúp em sửa bài code này với ạ
#include <stdio.h>
#include <conio.h>
void hoanvi(int *x,int *y);//khai bao nguyen mau ham
void nhapmang(int a[],int *n);
void inmang(int a[],int n);
void avg(int a[],int n,int i);//avg la Giatritrungbinh
int max(int a[],int n);
int min(int a[],int n);
int Timkiem(int a[],int n,int x);
int dem (int a[],int n,int i);
void sapxepgiam(int a[],int n);
void tongmang(int sum,int a[],int n,int i);
int main(){
{
int a[50];
int max,k;
// max chua gia tri lon nhat va k chua vi tri lon nhat
int i,j,n,xTimkiem;
int sum;
float avg;// avg là gia tri trung binh
int dem=0;
// so phan tu cua mang
nhapmang(a,&n);
printf("\nMang vua nhap la:\n");
inmang(a,n);
printf("\nNhap phan tu can tim:");
scanf("%d",&xTimkiem);
if(Timkiem(a,n,xTimkiem))
{
printf("\nGia tri %d xuat hien trong mang tai cac vi tri: ",xTimkiem);
for(i=0;i<n;i++)
{
if(a[i]==xTimkiem)
printf("%3d",i);
}
}
else
printf("\nKhong co phan tu %d trong mang",xTimkiem);
{
for(i=0;i<n;i++)
{
if(a[i]==xTimkiem)
{
printf("%3d", i);
dem++;
}
}
{
if ((dem>0))
{
printf("\n so phan tu thoa man dieu kien la : %3d",dem);
}
else if ((dem<0))
{
printf("\n khong co phan tu thoa man dieu kien trong mang");
}
else if ((dem!=0))
{
printf("\n khong co phan tu %3d trong mang ",xTimkiem);
}
}
//sap xep cac phan tu trong mang
printf("\nCac phan tu sau khi sap xep giam dan \n");
sapxepgiam(a,n);
inmang(a,n);
}
}
//ham hoan vi
void hoanvi(int *x,int *y);
{
int tam;
int *x,*y;
tam= *x;
*x = *y;
*y = tam;
}
//In mang ra man hinh
void inmang(int a[],int n);
{
int i,n;
int a[50];
for(int i=0;i<n;i++)
{
printf("%5d",a[i]);
}
}
//Sap xep
void sapxepgiam(int a[],int n);
{
int n,i,j,k;
int a[50];
for(int i=0;i<n-1;i++)
{
k=i;
for (j=i;j<n;j++)
{
if(a[j]>a[k])
k=j;
}
hoanvi(&a[k],&a[i]);
}
}
//TONGMANG
{
int n,i,sum=0;
int a[50];
scanf("%d",&n);
for(i=0;i<n;i++)
{
scanf("%d",&a[i]);
}
for(i=0;i<n;i++)
{if (a[i]>=0)
sum += a[i];
else
printf("%3d",sum);
}
return 0;
}
//GIATRITRUNGBINH
void avg(int a[],int n,int i);
{
int sum;
int avg;
int a[50];
int i;
sum = avg = 0;
printf ("Tinh gia tri trung binh cua mang: \n\n");
for (i=0;i<50;i++);
{sum += a[i];} // sum=sum+a[i];
printf("Tong cac phan tu cua mang la:%3d",sum);
avg = float(sum)/i;// giatriTB= tong cac phan tu trong mang chia cho tong so gioi han mang
printf("Gia tri trung binh cua mang la: %.2f", avg);
}
//NHAP MANG
void nhapmang(int a[],int *n);
{
int n;
int i;
int a[50];
printf("Nhap so phan tu cua mang:");
scanf("%d",n);
{
for (int i=0;i<n;i++)
{
printf("\na[%d]=",i);
scanf("%d",&a[i]);
}
}
}
//INMANG
void inmang(int a[],int n);
{
int n;
int a[50];
printf("Phan tu trong mang vua nhap:");
scanf("%d",n);
}
//MAX
int max(int a[], int n);
{
int a[50];
int n,i;
int max = a[0];
{
for (int i = 1; i < n; i++)
if (max < a[i])
{
max = a[i];}
return max;
}
}
//MIN
int min(int a[], int n);
{
int a[50];
int n,i;
int min = a[0];
{
for (int i = 1; i < n; i++)
if (min > a[i])
min = a[i];
return min;
}
}
int main(){
int a[50];
int n;
{
printf("\nNhap n = ");
scanf("%d", &n);
nhap(a,&n);
printf("\nMax = %d", max(a, n));
printf("\nMin = %d", min(a, n));
}
return 0;
}
//Timkiem
{
int kt=0;
int n,i;
int a[50];
int x; // x la phan tu can tim
for(int i=0;i<n;i++)
{
if (a[i]==x)
{
kt=1;
}
}
return kt;
}
//IN RA SO LON HON GIA TRI TRUNG BINH
{
int a[50];
int n,i;
int avg;
inmang(a,n);
if(a[i]>avg)
printf("\nPhan tu co gia tri lon hon gia tri trung binh la %d ");
else
printf("\nKhong co phan tu nao lon hon gia tri trung binh!!");
}
return 0;
}
In function 'int main()':
Line Col
210 11 [Error] a function-definition is not allowed here before '{' token
255 1 [Error] expected '}' at end of input