2020-10-27 12:26:02

#include <stdio.h>
#include <stdlib.h>

/* run this program using the console pauser or add your own getch, system("pause") or input loop */

typedef struct SPDienTu_ST {
	char ten[20];
	char ma[15];
	long int gia;
	char nhasx[20];
} SPDienTu;

void showMenu();
void nhapDuLieu(SPDienTu *p);
void sapXep(SPDienTu *p);
void hienThi(SPDienTu *p);
void thongKe(SPDienTu *p);
void timKiem(SPDienTu *p);

int main(int argc, char *argv[]) {
	SPDienTu danhsachsp[3];
	int select, i;
	
	do {
		showMenu();
		fflush(stdin);fflush(stdout);
		scanf("%d", &select);
		
		switch(select) {
			case 1: {
				nhapDuLieu(danhsachsp);
				break;
			}
			case 2:{
				//Sap xep mang
				sapXep(danhsachsp);
				//Hien thi thong tin ra nguoi dung
				hienThi(danhsachsp);
				//thong ke
				thongKe(danhsachsp);
				break;
			}
			break;
			case 3:
				timKiem(danhsachsp);
			break;
			case 4:
			
			break;
			case 5:
				printf("\nThoat chuong trinh!!!");
			break;
			default:
				printf("\nNhap sai!!!");
			break;	
		}
	}while(select != 5);
	
	return 0;
}


void showMenu() {
	printf("\n1. Nhap du lieu cua tung san pham");
	printf("\n2. Sap xep va hien thi thong tin chi tiet");
	printf("\n3. Tim san pham theo nha san xuat");
	printf("\n4. Ghi vao tap tin nhi phan");
	printf("\n5. Thoat");
	printf("\nnhap lua chon: ");
}

void nhapDuLieu(SPDienTu *p) {
	int i;
	printf("\nNhap du lieu cho tung san pham: ");	
	for(i = 0; i < 3; i++) {
		printf("\nNhap San Pham Thu %d:",i+1);
		printf("\nNhap ten: ");
		fflush(stdin);fflush(stdout);
		gets(p[i].ten);
//				scanf("%s", p[i].ten);
		printf("\nNhap Ma: ");
		fflush(stdin);fflush(stdout);
		gets(p[i].ma);
		printf("\nNhap Nha san xuat: ");
		fflush(stdin);fflush(stdout);
		gets(p[i].nhasx);
		printf("\nNhap Gia: ");
		scanf("%ld", &p[i].gia);
	}
}

void sapXep(SPDienTu *p) {
	int i, j;
	for(i=0;i<2;i++) {
		for(j=i+1;j<3;j++) {
			int cmp = strcmp(p[i].ten, p[j].ten);
			if(cmp < 0) {
				//doi vi tri 2 phan tu i, j
				SPDienTu tmp = p[i];
				p[i] = p[j];
				p[j] = tmp;
			}
		}
	}
}

void hienThi(SPDienTu *p) {
	printf("\n%5s||%15s||%5s||%20s||%5s", "STT", "Ten", "Ma", "Nha San Xuat", "Gia");
	int i;
	for(i=0;i<3;i++) {
		printf("\n%5d||%15s||%5s||%20s||%5d", i+1, p[i].ten, p[i].ma, p[i].nhasx, p[i].gia);
	}
}

void thongKe(SPDienTu *p) {
	int count[3];
	int i, j;
	
	for(i=0;i<3;i++){
		count[i] = 1;
	}
	for(i=0;i<2;i++){
		if(count[i] == 0) continue;
		for(j=i+1;j<3;j++) {
			if(count[j] == 0) continue;
			
			int cmp = strcmp(p[i].nhasx, p[j].nhasx);
			if(cmp==0) {
				count[i]++;
				count[j]--;
			}
		}
	}
	for(i=0;i<3;i++){
		if(count[i] > 0) {
			printf("\nNha san xuat %s co %d san pham", p[i].nhasx, count[i]);
		}
	}

}

void timKiem(SPDienTu *p) {
	printf("\nNhap ten nha san xuat: ");
	char search[30];
	fflush(stdin);fflush(stdout);
	gets(search);
	
	int i, count = 0;
	for(i=0;i<3;i++) {
		int cmp = strcmp(p[i].nhasx, search);
		if(cmp == 0) {
			if(count == 0) {
				printf("\n%5s||%15s||%5s||%20s||%5s", "STT", "Ten", "Ma", "Nha San Xuat", "Gia");
			}
			count++;
			printf("\n%5d||%15s||%5s||%20s||%5d", i+1, p[i].ten, p[i].ma, p[i].nhasx, p[i].gia);
		}
	}
	
	if(count == 0) {
		printf("\nKhong tim thay nha san xuat nao tuong ung");
	}
}

2020-10-24 13:10:44

#include <stdio.h>
#include <stdlib.h>

/* run this program using the console pauser or add your own getch, system("pause") or input loop */

typedef struct SPDienTu_ST {
	char ten[20];
	char ma[15];
	long int gia;
	char nhasx[20];
} SPDienTu;

void showMenu();
void nhapDuLieu(SPDienTu *p);

int main(int argc, char *argv[]) {
	SPDienTu danhsachsp[3];
	int select, i;
	
	do {
		showMenu();
		scanf("%d", &select);
		
		switch(select) {
			case 1: {
				nhapDuLieu(danhsachsp);
				break;
			}
			case 2:
				//Sap xep mang
				//Hien thi thong tin ra nguoi dung
			break;
			case 3:
			
			break;
			case 4:
			
			break;
			case 5:
				printf("\nThoat chuong trinh!!!");
			break;
			default:
				printf("\nNhap sai!!!");
			break;	
		}
	}while(select != 5);
	
	return 0;
}


void showMenu() {
	printf("\n1. Nhap du lieu cua tung san pham");
	printf("\n2. Sap xep va hien thi thong tin chi tiet");
	printf("\n3. Tim san pham theo nha san xuat");
	printf("\n4. Ghi vao tap tin nhi phan");
	printf("\n5. Thoat");
	printf("\nnhap lua chon: ");
}

void nhapDuLieu(SPDienTu *p) {
	int i;
	printf("\nNhap du lieu cho tung san pham: ");	
	for(i = 0; i < 3; i++) {
		printf("\nNhap San Pham Thu %d:",i+1);
		printf("\nNhap ten: ");
		fflush(stdin);fflush(stdout);
		gets(p[i].ten);
//				scanf("%s", p[i].ten);
		printf("\nNhap Ma: ");
		fflush(stdin);fflush(stdout);
		gets(p[i].ma);
		printf("\nNhap Nha san xuat: ");
		fflush(stdin);fflush(stdout);
		gets(p[i].nhasx);
		printf("\nNhap Gia: ");
		scanf("%ld", &p[i].gia);
	}
}

2020-10-12 08:27:53

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/* run this program using the console pauser or add your own getch, system("pause") or input loop */
void showMenu() {
	printf("\n1. Nhap du lieu tung sp");
	printf("\n2. Hien thi thong tin, thong ke theo nha san xuat");
	printf("\n3. Tim sp theo nsx");
	printf("\n4. Luu sp");
	printf("\n5. Thoat");
	printf("\nMoi chon");
}

typedef struct spdientu_ST{
	char ten[20], ma[15], nhasx[20];
	long int gia;
} spdientu;
int length=3;
void inputspList(spdientu *p){
	int i;
	for(i=0;i<length;i++) {
	printf("\nSan pham thu %d", i+1);
	printf("\nten sp ");
	fflush(stdin);fflush(stdout);
	gets(p[i].ten);
	printf("\nMa ");
	fflush(stdin);fflush(stdout);
	gets(p[i].ma);
	printf("\nNha sx ");
	fflush(stdin);fflush(stdout);
    gets(p[i].nhasx);
    printf("\nGia ");
    scanf("%d",&p[i].gia);
    }
}

void sxsp(spdientu *p) {
	int i, j;
	
	for(i=0;i<length-1;i++) {
		for(j=i+1;j<length;j++) {
			int cmp=strcmp(p[i].ten, p[j].ten);
			if(cmp>0) {
				spdientu tmp=p[i];
				p[i]=p[j];
				p[j]=tmp;
			}
		}
	}
}

void displaysp(spdientu *p) {
	int i, stt;
	
	printf("\n||%20s||%15s||%20s||%20d", "ten", "ma", "nhasx", "gia");
	for(i=0;i<length;i++) {
			printf("\n||%20s||%15s||%20s||%20d", p[i].ten, p[i].ma, p[i].nhasx, p[i].gia );
		
	}
	
}

void searchsp(spdientu *p) {
	int i;
	char j;
	printf("\nNhap nsx ");
	fflush(stdin);fflush(stdout);
	gets(p[j].nhasx);
	for(i=0;i<length;i++) {
		if(p[j].nhasx == p[i].nhasx) {
			printf("\n%10d||%20s||%15s||%20s||%20d", p[i].ten, p[i].ma, p[i].nhasx, p[i].gia );

		} else {
			printf("\nKhong co nsx nay");
		}
	}
}

void savespdientuList(spdientu *p) {
	FILE *fp;
	fp=fopen("spdientu.dat","wb");
	fwrite(p, sizeof(spdientu), length, fp);
	fclose(fp);
}
int main(int argc, char *argv[]) {
	spdientu danhsachspList[length];
	int choose;
	do {
		showMenu();
		scanf("%d",&choose);
		switch(choose) {
			case 1:
				inputspList(danhsachspList);
				break;
			case 2:
				sxsp(danhsachspList);
				displaysp(danhsachspList);
				break;
			case 3:
				searchsp(danhsachspList);
				break;
			case 4:
				savespdientuList(danhsachspList);
				break;
			case 5:
				printf("\nThoat");
				break;
			default:
				printf("\nBan nhap sai roi!!!nhap lai");
				break;
		} 
	} while(choose!=5);
	return 0;
}

2020-10-03 13:00:51

#include <stdio.h>
#include <stdlib.h>

/* run this program using the console pauser or add your own getch, system("pause") or input loop */
typedef struct spdientu_st {
	char ten[20], ma[15], nhasx[20];
	int gia;
} spdientu;
void showMenu();
void input(spdientu *p);
void sapxep(spdientu *p);
void hienthi(spdientu *p);
void thongke(spdientu *p);
void save(spdientu *p);
void tim(spdientu *p);

int main(int argc, char *argv[]) {
	int choose;
	spdientu spdientuList[3];
	do {
		showMenu();
		scanf("%d", &choose);
		switch(choose) {
			case 1:
				input(spdientuList);
				break;
			case 2:
				sapxep(spdientuList);
				hienthi(spdientuList);
				thongke(spdientuList);
				break;
			case 3:
				tim(spdientuList);
				break;
			case 4:
				save(spdientuList);
				printf("\nDa luu file!!!");
				break;
			case 5: 
				printf("\nThoat!!!");
				break;	
			default:
				printf("Nhap sai!!!");
				break;
				
		}
		
		
	} while (choose != 5);

	return 0;
}

void showMenu() {
	printf("\n1. Nhap du lieu: ");
	printf("\n2. Sap xep, hien thi: ");
	printf("\n3. Tim san pham theo nha SX: ");
	printf("\n4. Luu tap tin dang .dat: ");
	printf("\n5. Thoat:");
	printf("==============================");
	printf("\nChon choose: ");
}

void input(spdientu *p) {
	int i;
	for(i=0;i<3;i++) {
		printf("\nNhap san pham thu %d", i+1);
		printf("\nNhap ten: ");
		fflush(stdin);fflush(stdout);
		gets(p[i].ten);
		printf("\nNhap ma: ");
		fflush(stdin);fflush(stdout);
		gets(p[i].ma);
		printf("\nNhap nha SX: ");
		fflush(stdin);fflush(stdout);
		gets(p[i].nhasx);
		printf("\nNhap gia:");
		fflush(stdin);fflush(stdout);
		scanf("%d", &p[i].gia);
	}
}

void sapxep(spdientu *p) {
	int i,j;
	spdientu temp;
	for(i=0;i<2;i++) {
		for(j=i+1;j<3;j++) {
			if(strcmp(p[i].nhasx, p[j].nhasx) == -1) {
				temp = p[i];
				p[i] = p[j];
				p[j] = temp;
			}
		}
	}
}

void hienthi(spdientu *p) {
	printf("\nDanh sach san pham:");
	int i;
	for(i=0;i<70;i++) {
		printf("=");
	}
	printf("\n%3s||%10s||%10s||%10s||%10s", 
		"STT", "Ten", "Ma", "Nha SX", "Gia");
	for(i=0;i<3;i++) {
		printf("\n%3d||%10s||%10s||%10s||%10d", 
			i+1, p[i].ten, p[i].ma, p[i].nhasx, p[i].gia);
	}
}

void thongke(spdientu *p) {
	int i,j,count[3] = {1,1,1};
	for(i=0;i<2;i++) {
		for(j=i+1;j<3;j++) {
			if (strcmp(p[i].nhasx, p[j].nhasx) == 0) {
				count[i]++;
				count[j]--;
			}
		}
	}
	for(i=0;i<3;i++){
		if(count[i] != 0) {
			printf("\nNha SX %s co %d san pham", p[i].nhasx, count[i]);
		}
	}
}

void save(spdientu *p) {
	FILE *fp;
	fp = fopen("D:\\Quanlydodientu.dat", "w");
	fwrite(p,sizeof(spdientu),3,fp);
	fclose(fp);
	
}

void tim(spdientu *p) {
	int i, j, count = 0, m;
	char k[30];
	printf("\nNhap nha san xuat can tim: ");
	fflush(stdin); fflush(stdout);
	gets(k);
	for(i=0;i<3;i++) {
		m = strcmp(p[i].nhasx, k);
		if (m == 0) {
			printf("\nSan pham cua nha san xuat %s", p[i].nhasx);
			printf("\n%3d||%10s||%10s||%10s||%10d", 
				i+1, p[i].ten, p[i].ma, p[i].nhasx, p[i].gia);
			count++;
		}
	}
	if (count == 0) {
			printf("\nKhong co san pham.");
		}
	
	
}

2020-10-03 01:48:35

//Assignment Quan li do dien tu(checked)
#include<stdio.h>
#include<string.h>
#include<stdlib.h>

typedef struct spdientu_st{
	 char ten[20],ma[15],nhasx[20];
	 long int gia;
}App;

void Menu(){
	printf("\n1.Nhap du lieu cua tung san pham.");
	printf("\n2.Sap xep va hien thi thong tin chi tiet cua tung san pham theo ten(Z->A), thong ke theo nha san xuat.");
	printf("\n3.Tim san pham theo nha san xuat.");
	printf("\n4.Ghi vao tap tin nhi phan spdientu.dat.");
	printf("\n5.Thoat.");
}

void nhapsanpham(App *p){
	int i;
	for(i=0;i<3;i++){
		fflush(stdin);fflush(stdout);
		printf("\nNhap san pham %d:",i+1);
		fflush(stdin);fflush(stdout);
		printf("\nTen: ");
		gets(p[i].ten);
		fflush(stdin);fflush(stdout);
		printf("\nMa: ");
		gets(p[i].ma);
	    fflush(stdin);fflush(stdout);
		printf("\nNha san xuat: ");
		gets(p[i].nhasx);
		fflush(stdin);fflush(stdout);
		printf("\nGia: ");
		scanf("%ld",&p[i].gia);
		fflush(stdin);fflush(stdout);		
	}
}

void hiensanpham(App *p){
	int i,j;
	for(i=0;i<2;i++){
		for(j=i+1;j<3;j++){
			int cmp=strcmp(p[i].ten,p[j].ten);
			if(cmp<0){
				App temp=p[i];
				p[i]=p[j];
				p[j]=temp;
			}
		}
	}
	printf("\n%-5s||%-30s||%-20s||%-30s||%-12s","STT","Ten","Ma","Nha san xuat","Gia");
	for(i=0;i<3;i++){
		printf("\n00%d  ||%-30s||%-20s||%-30s||%-12ld",i+1,p[i].ten,p[i].ma,p[i].nhasx,p[i].gia);
	}
	printf("\n");
	int count[3]={1,1,1};
	for(i=0;i<2;i++){
		if(count[i]==0){
			continue;
		}
		for(j=i+1;j<3;j++){
			if(count[j]==0){
				continue;
			}
			int a=strcmp(p[i].nhasx,p[j].nhasx);
			if(a==0){
				count[i]++;
				count[j]--;
			}
		}
	}
	for(i=0;i<3;i++){
		if(count[i]!=0){
			printf("\nNha san xuat %s co %d san pham",p[i].nhasx,count[i]);
		}
	}
	printf("\n");
}

void timnhasanxuat(App *p){
	int i;
	int count=0;
	char nsx[50];
	fflush(stdin);fflush(stdout);
	printf("\nNhap nha san xuat can tim: ");
	gets(nsx);
	fflush(stdin);fflush(stdout);
	for(i=0;i<3;i++){
		int cmp=strcmp(nsx,p[i].nhasx);
		if(cmp==0){
			count++;
	    }
	}
	if(count!=0){
		printf("\n%-5s||%-30s||%-20s||%-30s||%-12s","STT","Ten","Ma","Nha san xuat","Gia");
	}
	count=0;
	for(i=0;i<3;i++){
		int cmp=strcmp(nsx,p[i].nhasx);
		if(cmp==0){
			count++;
			printf("\n00%d  ||%-30s||%-20s||%-30s||%-12ld",i+1,p[i].ten,p[i].ma,p[i].nhasx,p[i].gia);
		}
	}
	if(count==0){
		printf("\nKhong co san pham cua nha san xuat nay");
	}
	printf("\n");
}

void ghithongtin(App *p){
	FILE *fp;
	fp=fopen("spdientu.dat","wb");
	fread(p, sizeof(App), 3, fp);
	fclose(fp);
}

int main(){
	App danhsachsp[3];
	int choose;
	while(1){
		Menu();
		printf("\nLua chon chuong trinh: ");
		scanf("%d",&choose);
		switch(choose){
			case 1:
				nhapsanpham(danhsachsp);
			break;	
			case 2:
				hiensanpham(danhsachsp);
			break;	
			case 3:
				timnhasanxuat(danhsachsp);
			break;	
			case 4:
				ghithongtin(danhsachsp);
				printf("\nDa luu thanh cong!!\n");
			break;	
			case 5:
				printf("\nTam biet!!\n");
				exit(0);
			break;	
			default:
				printf("\nLoi cu phap, moi chon lai!!\n");
			break;	
		}
	}
}

2020-10-01 13:49:54

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

typedef struct spdientu_st{
	char ten[20], ma[15], nhasx[20];
	long int gia;	
} spdientu;

void menu();

void nhapdulieu(spdientu *t);

void sapxep(spdientu *t);

void hienthisapxep(spdientu *t);

void thongkesoluong(spdientu *t);

void timnhasanxuat(spdientu *t);

void ghidulieu(spdientu *t);

int main(int argc, char *argv[]) {
	int choose;
	spdientu danhsachsp[3];
	
	do{
		menu();
		
		printf("\nChon choose: ");
		scanf("%d", &choose);
		
		switch(choose){
			case 1:
				nhapdulieu(danhsachsp);
				break;
			
			case 2:
				sapxep (danhsachsp);
				hienthisapxep (danhsachsp);
				thongkesoluong(danhsachsp);
				break;
				
			case 3:
				timnhasanxuat (danhsachsp);
				break;
				
			case 4:
				ghidulieu(danhsachsp);
				break;
				
			case 5:
				printf("Ket thuc chuong trinh!!!");
				break;
			
			default:
				printf("Nhap sai choose!!!!");
				break;
			
		}
		
	}while(choose!=5);
	
	return 0;	
}


void menu(){
	printf("\n1.Nhap du lieu tung san pham");
	printf("\n2.Sap xep va hien thi thong tin chi tiet cua tung san pham theo ten (Z->A), thong ke theo nha san xuat");
	printf("\n3.Tim  san pham theo nha san xuat");
	printf("\n4.Ghi vao tap tin nhi phan spdientu.dat");
	printf("\n5.Thoat");
}

void nhapdulieu(spdientu *t){
	int a = 0;
	int i;
	for(i=0;i<3;i++){
		printf("\nNhap thong tin san pham thu %d", i+1);
		fflush(stdin), fflush(stdout);
		printf("\nTen: ");
		gets(t[i].ten);
		
		fflush(stdin), fflush(stdout);
		printf("\nMa: ");
		gets(t[i].ma);
		
		fflush(stdin), fflush(stdout);
		printf("\nNha san xuat: ");
		gets(t[i].nhasx);
		
		fflush(stdin), fflush(stdout);
		printf("\nGia: ");
		scanf("%d", &t[i].gia);	
		
		
		}		
	}
	
	void sapxep(spdientu *t){
		int i,j;
		for(i=0;i<2;i++){
			for(j=i+1;j<3;j++){
				int cmp = strcmp (t[i].ten, t[j].ten);
				if(cmp>0){
					spdientu tmp = t[i];
					t[i] = t[j];
					t[j] = tmp;	
				}			
			}
		}	
	}
	
	
	void hienthisapxep(spdientu *t){
		printf("\n|%10s|%20s|%15s|%20s|%15s|","STT","Ten", "Ma", "Nhasanxuat", "Gia");
		
		int i;
		for(i=0;i<3;i++){
		printf("\n|%10d|%20s|%15s|%20s|%15d|", i+1, t[i].ten, t[i].ma, t[i].nhasx,t[i].gia);
		}		
	}
	
	void thongkesoluong(spdientu *t){
		int i,j;
		int count[3] = {1,1,1};
			for(i=0;i<2;i++){
				if(count[i]==0){
					continue;
				}
				for(j=i+1;j<3;j++){
				if(count[j]==0){
					continue;
				}
				int cmp = strcmp(t[i].nhasx, t[j].nhasx);
				if(cmp==0){
					count[i]++;
					count[j]--;	
				}
				}
				
			}
				for(i=0;i<3;i++){
					if(count[i]!=0){
						printf("\nSo san pham cua nha san suat %s la: %d", t[i].nhasx, count[i] );
					}
				}
		}
	
	void timnhasanxuat(spdientu *t){
		char tennhasx[50];
		printf("\nNhap ten nha san xuat: ");
		fflush(stdin), fflush(stdout);
		gets(tennhasx);
		
		printf("\n|%10s|%20s|%15s|%20s|%15s|","STT","Ten", "Ma", "Nhasanxuat", "Gia");
		
		int i,cmp;
		int count = 0;
		for(i=0;i<3;i++){
			cmp = strcmp(tennhasx, t[i].nhasx);
			if(cmp==0){
				count++;
			printf("\n|%10d|%20s|%15s|%20s|%15d|", i+1, t[i].ten, t[i].ma, t[i].nhasx,t[i].gia);	
			}	
		}

		if(count==0){
			printf("\nKhong co san pham nao cua nha san xuat nay");
		}
		
	}
	
	
	void ghidulieu(spdientu *t){
		FILE *fp;
		fp = fopen("spdientu.dat","wb");
		fwrite(t, sizeof (spdientu), 3,fp);
		fclose(fp);
		
	}
	
	
	

2020-09-30 06:45:53

#include<stdio.h>
#include<stdlib.h>
#include<string.h>
typedef struct spdientu_st{	
	char ten[20];char ma[15];long int gia;char nhasx[20];
}SP;

void nhapdulieu(SP *p);
void sapxepdulieu(SP *p);
void hienthidulieu(SP *p);
void timkiemdulieu(SP *p);
void ghiteptin(SP *p);

int main(){
	SP danhsachsp[3];
	int a;
	while(a!=5){
	printf("\n===================MENU=====================");
	printf("\n1.Nhap du lieu tung san pham");
	printf("\n2.Sap xep va hien thi chi tiet tung san pham");
	printf("\n3.Tim san pham theo nha sx");
	printf("\n4.Ghi vao tap tin nhi phan spdientu.dat");
	printf("\n5.Thoat");
	printf("\nChon:");
	scanf("%d", &a);
	switch(a){
		case 1:
			nhapdulieu(danhsachsp);
	    	break;
		case 2:
			sapxepdulieu(danhsachsp);
			hienthidulieu(danhsachsp);
			break;
		case 3:
			timkiemdulieu(danhsachsp);
			break;
		case 4:
			ghiteptin(danhsachsp);
			break;
		case 5:
			printf("\nGoodbye!!!");
			break;
		default:
			printf("\nNhap sai!!!!!!");
			break;
	}
}
return 0;
}
void nhapdulieu(SP *p){
	int i;
	for(i=0;i<3;i++){
		printf("\nNhap du lieu san pham %d", i+1);
		printf("\nTen san pham: ");
		fflush(stdin);
		gets(p[i].ten);
		printf("\nMa san pham: ");
		fflush(stdin);
		gets(p[i].ma);
		printf("\nNha san xuat: ");
		fflush(stdin);
		gets(p[i].nhasx);
		printf("\nGia san pham: ");
		fflush(stdin);
		scanf("%d", &p[i].gia);
		
	}
}
void sapxepdulieu(SP *p){
	int i,j;
	for(i=0;i<2;i++){
		for(j=i+1;j<3;j++){
			int cmp = strcmp(p[i].nhasx,p[j].nhasx);
			if(cmp<0){
				SP temp=p[i];
				p[i]=p[j];
				p[j]=temp;
			}
		}
	}
}
void hienthidulieu(SP *p){
	int i;
	printf("\n%-3s||%-20s||%-15s||%-20s||%-15s||","STT","Ten","Ma","Nhasx","Gia");
	for(i=0;i<3;i++){
		printf("\n00%d||%-20s||%-15s||%-20s||%-15ld||", i+1,p[i].ten,p[i].ma,p[i].nhasx,p[i].gia);
	}
	printf("\n");
	int count[3]={1,1,1};
	for(i=0;i<2;i++){
		if(count[i]==0){
			continue;
		}
		for(int j=i+1;j<3;j++){
			if(count[j]==0){
				continue;
			}
			int a=strcmp(p[i].nhasx,p[j].nhasx);
			if(a==0){
				count[i]++;
				count[j]--;
			}
		}
	}
	for(i=0;i<3;i++){
		if(count[i]!=0){
			printf("\nNha san xuat %s co %d san pham",p[i].nhasx,count[i]);
		}
	}
}
void timkiemdulieu(SP *p){
	int found=0;
	int i;
	char nsx[50];
	fflush(stdin);fflush(stdout);
	printf("\nNhap nha san xuat can tim: ");
	gets(nsx);
	fflush(stdin);fflush(stdout);
	for(i=0;i<3;i++){
		int cmp=strcmp(nsx,p[i].nhasx);
		if(cmp==0){
			found++;
		}
	}
	if(found!=0){
		printf("\n%-3s||%-20s||%-15s||%-20s||%-15s||","STT","Ten","Ma","Nhasx","Gia");
	}
	found=0;
	for(i=0;i<3;i++){
		int cmp=strcmp(nsx,p[i].nhasx);
		if(cmp==0){
			printf("\n00%d||%-20s||%-15s||%-20s||%-15ld||", i+1,p[i].ten,p[i].ma,p[i].nhasx,p[i].gia);
			found++;
		}
	}
	if(found==0){
		printf("\nKhong co san pham nay.!");
	}
}	

void ghiteptin(SP *p){
	FILE *fp;
	fp=fopen("spdientu.dat","wb");
	fread(p, sizeof(SP), 3, fp);
	fclose(fp);
}