matkhau

#include<stdio.h>
int main()
{
    int n; // Chinh
    int i; // Phu
    printf("Moi ban nhap mat khau : ");
    scanf("%d",&n);
    printf("\n");
    printf("Mat khau da duoc sao luu.");
    printf("\n");
    while (i!=n)
    {
        printf("\n");
        printf("Moi ban nhap lai: ");
        scanf("%d",&i);
    }
    printf("\n");
    printf("Ban da nhap dung !!");
    
}