#include<stdio.h>
#include<conio.h>
#include<math.h>
#define MAX 100

void nhap (int a[], int &n)
{
	do
	{
		printf("\nNhap so phan tu: ");
		scanf("%d", &n);
		if(n <= 0 || n > MAX)
		{
			printf("\nSo phan tu khong hop le. Xin kiem tra lai !");
		}
	}while(n <= 0 || n > MAX);
	for(int i = 0; i < n; i++)
	{
		printf("\nNhap a[%d]: ", i);
		scanf("%d", &a[i]);
	}
}

void xuat(int a[], int n)
{
	for(int i = 0; i < n; i++)
	{
		printf("%4d", a[i]);
	}
}

// Nếu không có lẻ thì trả về -1
int TimViTriLeDauTien(int a[], int n)
{
	for (int i = 0; i < n; i++)
	{
		if (a[i] % 2 != 0)
		{
			return i;
		}
	}
	return -1;
}
int TimSoLeNhoNhat(int a[], int n, int ViTriDauTien)
{
	int MinLe = a[ViTriDauTien];

	for (int i = ViTriDauTien + 1; i < n; i++)
	{
		if (a[i] % 2 != 0 && a[i] < MinLe)
		{
			MinLe = a[i];
		}
	}
	return MinLe;
}
int main()
{
	int n;
	int a[MAX];

	nhap(a, n);
	xuat(a, n);
	
	int ViTriLeDauTien = TimViTriLeDauTien(a, n);
	if (ViTriLeDauTien == -1)
	{
		printf("\nMang khong ton tai so le");
	}
	else
	{
		int MinLe = TimSoLeNhoNhat(a, n, ViTriLeDauTien);
		int SoChanThoa = MinLe - 1;
		printf("\nSo chan lon nhat nho hon toan bo gia tri le trong mang la %d", SoChanThoa);
	}
	getch();
	return 0;
}

Line 17: error: conio.h: No such file or directory
Line 6: error: expected ';', ',' or ')' before '&' token
In function 'xuat':
Line 26: error: 'for' loop initial declaration used outside C99 mode
In function 'TimViTriLeDauTien':
Line 35: error: 'for' loop initial declaration used outside C99 mode
In function 'TimSoLeNhoNhat':
Line 48: error: 'for' loop initial declaration used outside C99 mode