C code - 103 lines

Link:

C, pasted on Sep 19:

#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]);
	}
}

// nguyên tố => true
int KiemTraNguyenTo(int n)
{
	if (n < 2)
	{
		return 0;
	}
	else if (n > 2)
	{
		if (n % 2 == 0)
		{
			return 0;
		}
		for (int i = 3; i <= sqrt((float)n); i += 2)
		{
			if (n % i == 0)
			{
				return 0;
			}
		}
	}
	return 1;
}

int TimViTriSoNguyenToDau(int a[], int n)
{
	for(int i = 0; i < n; i++)
	{
		if(KiemTraNguyenTo(a[i]) == 1)
		{
			return i;
		}
	}
	return 0;
}

int TimSoNguyenToLonNhat(int a[], int n, int vitringuyentodau)
{
	int nguyentomax = a[vitringuyentodau];
	for (int i = vitringuyentodau + 1; i < n; i++)
	{
		if (KiemTraNguyenTo(a[i]) == 1 && a[i] > nguyentomax)
		{
			nguyentomax = a[i];
		}
	}
	return nguyentomax;
}
int main()
{
	int n;
	int a[MAX];

	nhap(a, n);
	xuat(a, n);

	int vitringuyentodau = TimViTriSoNguyenToDau(a, n);
	//printf("\nVi tri nguyen to dau la %d",  vitringuyentodau);

	if(vitringuyentodau == 0)
	{
		printf("\nMang khong co so nguyen to");
	}
	else
	{
		int nguyentomax = TimSoNguyenToLonNhat(a, n, vitringuyentodau);
		printf("\nSo nguyen to lon nhat la %d", nguyentomax);
	}

	getch();
	return 0;
}

Output:

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 'KiemTraNguyenTo':
Line 45: error: 'for' loop initial declaration used outside C99 mode
In function 'TimViTriSoNguyenToDau':
Line 58: error: 'for' loop initial declaration used outside C99 mode
In function 'TimSoNguyenToLonNhat':
Line 71: error: 'for' loop initial declaration used outside C99 mode

Create a new paste based on this one

Comments:

posted by luongphongnhan on Oct 28

#include<iostream>
using namespace std;
#define MAX 100

void nhapMang(int* arr, int& n) {
cout << "Moi nhap mang: " << endl;
do
{
cout << "Moi nhap so luong phan tu cua mang! ";
cin >> n;
if (n <= 0 || n > 100)
{
cout << "So luong phan tu mang khong hop le, Vui long nhap lai!" << endl;
}
} while (n <= 0 || n > 100);
for (int i = 0; i < n; i++)
{
cout << "Moi nhap phan tu tu " << i << " cua mang: ";
cin >> arr[i];
}
}

void xuatMang(int* arr, int n) {
cout << "Mang vua nhap la: ";
for (int i = 0; i < n; i++)
{
cout << arr[i] << " ";
}
cout << endl;
}

bool checkNguyenTo(int n) {
if (n < 2) {
return false;
}
else if (n > 2) {
if (n % 2 == 0) {
return false;
}
for (int i = 3; i <= (n / 2); i++) {
if (n % i == 0) {
return false;
}

}
}
return true;
}

int timNguyenToDauTien(int* arr, int n) {
for (int i = 0; i < n; i++)
{
if (checkNguyenTo(arr[i]) == true)
{
return arr[i];
}
}
return -1;
}

int timSoNguyenToMax(int* arr, int n, int chiSo) {
int nguyenToMax = arr[chiSo];
for (int i = chiSo+1; i < n; i++)
{
if (checkNguyenTo(arr[i]) == true && arr[i] > nguyenToMax) {
nguyenToMax = arr[i];
}
}
return nguyenToMax;
}
int main() {
int numOfArr;
int* Arr = new int[MAX];
nhapMang(Arr, numOfArr);
xuatMang(Arr, numOfArr);
int chiso = timNguyenToDauTien(Arr, numOfArr);
if (chiso == -1)
{
return -1;
}
else {
cout << "So nguyen to lon nhat trong mang la: " << timSoNguyenToMax(Arr, numOfArr, chiso) << endl;
}
system("pause");
return 0;
}

posted by 21521809@gm.uit.edu.vn on Dec 18

ngắn hơn nè

#include <iostream>

using namespace std;

void nhapmang(float a[],int n){
for(int i=0;i<n;i++){
cout<<"a["<<i<<"] = ";
cin>>a[i];
}
}
float ketqua(float a[],int n){
float max=0;
for(int i=0;i<n;i++){
int x=0;
for(int j=1;j<=a[i];j++){
if((int)a[i]%j==0){
x++;
}
}
if(x==2 && a[i]>max)
{
max=a[i];
}
}if(max!=0){
return max;
}return -1;
}

int main()
{
float a[100];
int n;
cout<<"nhap n : ";
cin>>n;
nhapmang(a,n);
cout<<"ket qua la : "<<ketqua(a,n);

return 0;
}